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Dash

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Dash
En dash Em dash Horizontal bar Figure dash

Thedashis apunctuationmark consisting of a long horizontal line. It is similar in appearance to thehyphenbut is longer and sometimes higher from thebaseline.The most common versions are theendash,generally longer than the hyphen but shorter than theminus sign;theemdash,longer than either the en dash or the minus sign; and thehorizontalbar,whose length varies acrosstypefacesbut tends to be between those of theenandemdashes.[a]

Typical uses of dashes are to mark a break in a sentence, or to set off an explanatory remark (similar to parenthesis), or to show spans of time or ranges of values.

The em dash is sometimes used as a leading character to identify the source of a quoted text.

History

[edit]
1622Okes-print ofOthello,p.19.Note use of dashes.

In the early 17th century, inOkes-printedplaysofWilliam Shakespeare,dashes are attested that indicate a thinking pause, interruption, mid-speech realization, or change of subject.[1]The dashes are variously longer(as inKing Learreprinted 1619) or composed of hyphens---(as inOthelloprinted 1622); moreover, the dashes are often, but not always, prefixed by a comma, colon, or semicolon.[2][3][1][4]

In 1733, inJonathan Swift'sOn Poetry,the termsbreakanddashare attested forandmarks:[5]

Blot out, correct, insert, refine,
Enlarge, diminish, interline;
Be mindful, when Invention fails;
To scratch your Head, and bite your Nails.

Your poem finish'd, next your Care
Is needful, to transcribe it fair.
In modern Wit all printed Trash, is
Set off with num'rousBreaks⸺andDashes

Types of dash

[edit]

Usage varies both within English and within other languages, but the usual conventions for the most common dashes in printed English text are these:

Glitter, felt, yarn, and buttons—his kitchen looked as if a clown had exploded.
A flock of sparrows—some of them juveniles—alighted and sang.

Glitter, felt, yarn, and buttons – his kitchen looked as if a clown had exploded.
A flock of sparrows – some of them juveniles – alighted and sang.

  • An en dash, but not an em dash, indicates spans or differentiation, where it may replace "and", "to", or "through".[6]For example:

The French and Indian War (1754–1763) was fought in western Pennsylvania and along the present US–Canada border

— Edwards, pp. 81–101.
  • An em dash or horizontal bar, but not an en dash, is used to set off the source of a directquotation.For example:

Seven social sins: politics without principles, wealth without work, pleasure without conscience, knowledge without character, commerce without morality, science without humanity, and worship without sacrifice.

  • A horizontal bar (also calledquotation dash)[7]or the em dash, but not the en dash, introduces quoted text.
  • In informal contexts, ahyphen-minus(-) is often used as a substitute for an endash, as is a pair of hyphen-minuses (--) for an emdash, because the hyphen-minus symbol is readily available on most keyboards.[8]Theautocorrectionfacility of word-processing software often corrects these to the typographically correct form of dash.

Figure dash

[edit]

Thefigure dash(U+2012FIGURE DASH) has the same width as a numerical digit. (Manyfontshave digits of equal width.[9]) It is used within numbers such as the phone number 555‒0199, especially in columns so as to maintain alignment. In contrast, the en dash(U+2013EN DASH) is generally used for a range of values.[10]

Theminus sign(U+2212MINUS SIGN)glyphis generally set a little higher, so as to be level with the horizontal bar of theplus sign.In informal usage, thehyphen-minus-(U+002D-HYPHEN-MINUS), provided as standard on most keyboards, is often used instead of the figure dash.

InTeX,the standard fonts have no figure dash; however, the digits normally all have the same width as the en dash, so an en dash can be a substitution for the figure dash. InXeLaTeX,one can use\char "2012.[11]TheLinux Libertinefont also has the figure dash glyph.

En dash

[edit]

Theen dash,en rule,ornut dash[12]is traditionally half the width of anem dash.[13][14] In modern fonts, the length of the en dash is not standardized, and the en dash is often more than half the width of the em dash.[15]The widths of en and em dashes have also been specified as being equal to those of the upper-case letters N and M, respectively,[16][17] and at other times to the widths of the lower-case letters.[15][18]

Usage

[edit]

The three main uses of the en dash are:

  1. to connect symmetric items, such as the two ends of a range or two competitors or alternatives
  2. to contrast values or illustrate a relationship between two things
  3. to compound attributes, where one of the connected items is itself a compound

Ranges of values

[edit]

The en dash is commonly used to indicate a closed range of values – a range with clearly defined and finite upper and lower boundaries – roughly signifying what might otherwise be communicated by the word "through" in American English, or "to" in International English.[19]This may include ranges such as those between dates, times, or numbers.[20][21][22][23]Variousstyle guidesrestrict this range indication style to only parenthetical or tabular matter, requiring "to" or "through" in running text. Preference for hyphen vs. en dash in ranges varies. For example, theAPA style(named after the American Psychological Association) uses an en dash in ranges, but theAMA style(named after the American Medical Association) uses a hyphen:

En dash range style (e.g.,APA[b]) Hyphenrange style (e.g.,AMA[b]) Running text spell-out
June–July 1967 June-July 1967 June and July 1967
1:15–2:15 p.m. 1:15-2:15PM 1:15 to 2:15 p.m.
For ages 3–5 For ages 3-5 For ages 3 through 5
pp. 38–55 pp 38-55 pages 38 through 55
President Jimmy Carter (1977–81) President Jimmy Carter (1977-81) President Jimmy Carter, in office from 1977 to 1981

Some style guides (including theGuide for the Use of the International System of Units (SI)and theAMA Manual of Style) recommend that, when a number range might be misconstrued as subtraction, the word "to" should be used instead of an en dash. For example, "a voltage of 50 V to 100 V" is preferable to using "a voltage of 50–100 V". Relatedly, in ranges that include negative numbers, "to" is used to avoid ambiguity or awkwardness (for example, "temperatures ranged from −18°C to −34°C "). It is also considered poor style (best avoided) to use the en dash in place of the words" to "or" and "in phrases that follow the formsfrom X to Yandbetween X and Y.[21][22]

Relationships and connections

[edit]

The en dash is used to contrast values or illustrate a relationship between two things.[20][23]Examples of this usage include:

  • Australia beat American Samoa 31–0.
  • Radical–Unionist coalition
  • Boston–Hartford route
  • New York–London flight (however, it may be argued thatNew York–to-London flightis more appropriate because New York is a single name composed of two valid words; with a single en dash, the phrase is ambiguous and could mean eitherFlight from New York to LondonorNew flight from York to London;such ambiguity is assuaged when used mid-sentence, though, because of the capital N in "New" indicating it is a special noun). If dash–hyphen use becomes too unwieldy or difficult to understand, the sentence can be rephrased for clarity and readability; for example, "The flight from New York to London was a pleasant experience".[23]
  • Mother–daughter relationship
  • TheSupreme Courtvoted 5–4 to uphold the decision.

A distinction is often made between "simple" attributive compounds (written with a hyphen) and other subtypes (written with an en dash); at least one authority considers name pairs, where the paired elements carry equal weight, as in theTaft–Hartley Actto be "simple",[21]while others consider an en dash appropriate in instances such as these[24][25][26]to represent the parallel relationship, as in theMcCain–Feingold billorBose–Einstein statistics.When an act of the U.S. Congress is named using the surnames of the senator and representative who sponsored it, the hyphen-minus is used in theshort title;thus, the short title ofPublic Law 111–203is "The Dodd-Frank Wall Street Reform and Consumer Protection Act", with ahyphen-minusrather than an en dash between "Dodd" and "Frank".[27]However, there is a difference between something named for a parallel/coordinate relationship between two people – for example,Satyendra Nath BoseandAlbert Einstein– and something named for a single person who had acompound surname,which may be written with a hyphen or a space but not an en dash – for example, theLennard-Jones potential[hyphen] is named after one person (John Lennard-Jones), as areBence Jones proteinsandHughlings Jackson syndrome.Copyeditors use dictionaries (general, medical, biographical, and geographical) to confirm theeponymity(and thus the styling) for specific terms, given that no one can know them all offhand.

Preference for an en dash instead of a hyphen in these coordinate/relationship/connection types of terms is a matter of style, not inherent orthographic "correctness"; both are equally "correct", and each is the preferred style in some style guides. For example,the American Heritage Dictionary of the English Language,theAMA Manual of Style,andDorland's medical reference worksuse hyphens, not en dashes, in coordinate terms (such as "blood-brain barrier"), ineponyms(such as "Cheyne-Stokes respiration","Kaplan-Meier method"), and so on. In other styles, AP Style or Chicago Style, the en dash is used to describe two closely related entities in a formal manner.

Attributive compounds

[edit]

In English, the en dash is usually used instead of ahyphenincompound (phrasal) attributivesin which one or both elements is itself a compound, especially when the compound element is anopen compound,meaning it is not itself hyphenated. This manner of usage may include such examples as:[21][22][28][29]

  • The hospital–nursing home connection (the connection between thehospitaland thenursing home,not ahome connectionbetween thehospitalandnursing)
  • A nursing home–home care policy (a policy about thenursing homeandhome care)
  • Pre–Civil War era
  • Pulitzer Prize–winning novel
  • New York–style pizza
  • The non–San Francisco part of the world
  • The post–World War II era
    • (Comparepost-warera,which, if not fully compounded (postwar), takes a hyphen, not an en dash. The difference is thatwaris not an open compound, whereasWorld War IIis.)
  • Trans–New Guinea languages
  • The ex–prime minister
  • a long–focal length camera
  • water ice–based bedrock
  • The pro-conscription–anti-conscription debate
  • Public-school–private-school rivalries

The disambiguating value of the en dash in these patterns was illustrated by Strunk and White inThe Elements of Stylewith the following example: WhenChattanooga NewsandChattanooga Free Pressmerged, the joint company was inaptly namedChattanooga News-Free Press(using a hyphen), which could be interpreted as meaning that their newspapers were news-free.[30]

An exception to the use of en dashes is usually made whenprefi xingan already-hyphenated compound;an en dash is generally avoided as a distraction in this case. Examples of this include:[30]

An en dash can be retained to avoid ambiguity, but whether any ambiguity is plausible is a judgment call.AMA styleretains the en dashes in the following examples:[31]

  • non–self-governing
  • non–English-language journals
  • non–group-specific blood
  • non–Q-wave myocardial infarction
  • non–brain-injured subjects

Differing recommendations

[edit]

As discussed above, the en dash is sometimes recommended instead of a hyphen incompound adjectiveswhere neither part of the adjective modifies the other—that is, when each modifies the noun, as inlove–hate relationship.

The Chicago Manual of Style(CMOS), however, limits the use of the en dash to two main purposes:

  • First, use it to indicate ranges of time, money, or other amounts, or in certain other cases where it replaces the word "to".
  • Second, use it in place of a hyphen in a compound adjective when one of the elements of the adjective is an open compound, or when two or more of its elements are compounds, open or hyphenated.[32]

That is, theCMOSfavors hyphens in instances where some other guides suggest en dashes, with the 16th edition explaining that "Chicago's sense of the en dash does not extend tobetween",to rule out its use in" US–Canadian relations ".[33]

In these two uses, en dashes normally do not have spaces around them. Some make an exception when they believe avoiding spaces may cause confusion or look odd. For example, compare"12 June – 3 July"with"12 June–3 July".[34]However, other authorities disagree and state there should be no space between an en dash and adjacent text. These authorities would not use a space in, for example,"11:00 a.m.⁠–⁠1:00 p.m."[35]or"July 9–August 17".[36][37]

Parenthetic and other uses at the sentence level

[edit]

En dashes can be used instead of pairs of commas that mark off a nested clause or phrase. They can also be used around parenthetical expressions – such as this one – rather than the em dashes preferred by some publishers.[38][8]

The en dash can also signify a rhetorical pause. For example, anopinion piecefromThe Guardianis entitled:

Who is to blame for the sweltering weather? My kids say it's boomers – and me[39]

In these situations, en dashes must have a single space on each side.[8]

Typography

[edit]

Spacing

[edit]

In most uses of en dashes, such as when used in indicating ranges, they are typeset closed up to the adjacent words or numbers. Examples include "the 1914–18war "or" the Dover–Calais crossing ". It is only when en dashes are used in setting off parenthetical expressions – such as this one – that they take spaces around them.[40]For more on the choice of em versus en in this context, seeEn dash versus em dash.

Encoding and substitution

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When an en dash is unavailable in a particularcharacter encodingenvironment—as in theASCIIcharacter set—there are some conventional substitutions. Often two consecutive hyphens are the substitute.

The en dash is encoded in Unicode as U+2013 (decimal 8211) and represented in HTML by thenamed character entity–.

The en dash is sometimes used as a substitute for theminus sign,when the minus sign character is not available since the en dash is usually the same width as a plus sign and is often available when the minus sign is not; seebelow.For example, the original 8-bitMacintosh Character Sethad an en dash, useful for the minus sign, years before Unicode with a dedicated minus sign was available. The hyphen-minus is usually too narrow to make a typographically acceptable minus sign. However, the en dash cannot be used for a minus sign inprogramming languagesbecause the syntax usually requires a hyphen-minus.

Itemization mark

[edit]

Either the en dash or the em dash may be used as abulletat the start of each item in a bulleted list.

Em dash

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Theem dash,em rule,ormutton dash[12]is longer than anen dash.The character is called anem dashbecause it is oneemwide, a length that varies depending on the font size. One em is the same length as the font's height (which is typically measured inpoints). So in 9-point type, an em dash is nine points wide, while in 24-point type the em dash is 24 points wide. By comparison, the en dash, with its1enwidth, is in mostfontseither a half-em wide[41] or the width of an upper-case "N".[42]

The em dash is encoded in Unicode as U+2014 (decimal 8212) and represented in HTML by the named character entity—.

Usage

[edit]

The em dash is used in several ways. It is primarily used in places where a set ofparenthesesor acolonmight otherwise be used,[43][full citation needed]and it can also show an abrupt change in thought (or an interruption in speech) or be used where afull stop(period) is too strong and acommais too weak (similar to that of a semicolon). Em dashes are also used to set off summaries or definitions.[44]Common uses and definitions are cited below with examples.

Colon-like use

[edit]
Simple equivalence (or near-equivalence) of colon and em dash
[edit]
  • Three alkali metals are the usual substituents: sodium, potassium, and lithium.
  • Three alkali metals are the usual substituents—sodium, potassium, and lithium.
Inversion of the function of a colon
[edit]
  • These are the colors of the flag: red, white, and blue.
  • Red, white, and blue—these are the colors of the flag.

Parenthesis-like use

[edit]
Simple equivalence (or near-equivalence) of paired parenthetical marks
[edit]
  • Compare parentheses with em dashes:
    • Three alkali metals (sodium, potassium, and lithium) are the usual substituents.
    • Three alkali metals—sodium, potassium, and lithium—are the usual substituents.
  • Compare commas, em dashes and parentheses (respectively) when no internal commas intervene:
    • The food, which was delicious, reminded me of home.
    • The food—which was delicious—reminded me of home.
    • The food (which was delicious) reminded me of home.
Subtle differences in punctuation
[edit]

It may indicate an interpolation stronger than that demarcated by parentheses, as in the following fromNicholson Baker'sThe Mezzanine(the degree of difference is subjective).

  • "At that age I once stabbed my best friend, Fred, with a pair of pinking shears in the base of the neck, enraged because he had been given the comprehensive sixty-four-crayon Crayola box—including the gold and silver crayons—and would not let me look closely at the box to see how Crayola had stabilized the built-in crayon sharpener under the tiers of crayons."

Interruption of a speaker

[edit]
Interruption by someone else
[edit]
  • "But I'm trying to explain that I—"
    "I'm aware of your mitigating circumstances, but your negative attitude was excessive."

In a related use, it may visually indicate the shift between speakers when they overlap in speech. For example, the em dash is used this way inJoseph Heller'sCatch-22:

  • He was Cain, Ulysses, the Flying Dutchman; he was Lot in Sodom, Deirdre of the Sorrows, Sweeney in the nightingales among trees. He was the miracle ingredient Z-147. He was—
    "Crazy!" Clevinger interrupted, shrieking. "That's what you are! Crazy!"
    "—immense. I'm a real, slam-bang, honest-to-goodness, three-fisted humdinger. I'm a bona fide supraman."
Self-interruption
[edit]
Either anellipsisor an em dash can indicateaposiopesis,therhetorical deviceby which a sentence is stopped short not because of interruption, but because the speaker is too emotional or pensive to continue. Because the ellipsis is the more common choice, an em dash for this purpose may be ambiguous in expository text, as many readers would assume interruption, although it may be used to indicate great emotion in dramaticmonologue.
  • Long pause:
    • InEarly Modern Englishtexts and afterward, em dashes have been used to add long pauses (as noted in Joseph Robertson's 1785An Essay on Punctuation):

Lord Cardinal! if thou think'st on heaven's bliss,
Hold up thy hand, make signal of that hope.—
He dies, and makes no sign!

Quotation

[edit]
Quotation mark–like use
[edit]

This is aquotation dash.It may be distinct from an em dash in its coding (seehorizontal bar). It may be used to indicate turns in a dialogue, in which case each dash starts a paragraph.[46]It replaces other quotation marks and was preferred by authors such asJames Joyce:[47]

―O saints above! miss Douce said, sighed above her jumping rose. I wished I hadn't laughed so much. I feel all wet.
―O, miss Douce! miss Kennedy protested. You horrid thing!
Attribution of quote source
[edit]

The Walrus and the Carpenter
Were walking close at hand;
They wept like anything to see
Such quantities of sand:
"If this were only cleared away,"
They said, "it would be grand!"

Redaction

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An em dash may be used to indicate omitted letters in a word redacted to an initial or single letter or tofilleta word, by leaving the start and end letters whilst replacing the middle letters with a dash or dashes (forcensorshipor simplydata anonymization). It may also censor the end letter. In this use, it is sometimes doubled.

  • It was alleged that D⸺ had been threatened with blackmail.

Three em dashes might be used to indicate a completely missing word.[48]

Itemization mark

[edit]

Either the en dash or the em dash may be used as abulletat the start of each item in a bulleted list, but a plain hyphen is more commonly used.

Repetition

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Three em dashes one after another can be used in a footnote, endnote, or another form of bibliographic entry to indicate repetition of the same author's name as that of the previous work,[48]which is similar to the use ofid.

Typographic details

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Spacing and substitution

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According to most American sources (such asThe Chicago Manual of Style) and some British sources (such asThe Oxford Guide to Style), an em dash should always be set closed, meaning it should not be surrounded by spaces. But the practice in some parts of the English-speaking world, including the style recommended byThe New York Times Manual of Style and Usagefor printed newspapers and theAP Stylebook,sets it open, separating it from its surrounding words by using spaces orhair spaces(U+200A) when it is being used parenthetically.[49][50]TheAP Stylebookrejects the use of the open em dash to set off introductory items in lists. However, the "space, en dash, space" sequence is the predominant style in German and Frenchtypography.(SeeEn dash versus em dashbelow.)

In Canada,The Canadian Style: A Guide to Writing and Editing,The Oxford Canadian A to Z of Grammar, Spelling & Punctuation: Guide to Canadian English Usage(2nd ed.),Editing Canadian English,and theCanadian Oxford Dictionaryall specify that an em dash should be set closed when used between words, a word and numeral, or two numerals.

The Australian government'sStyle Manual for Authors, Editors and Printers(6th ed.), also specifies that em dashes inserted between words, a word and numeral, or two numerals, should be set closed. A section on the 2-em rule (⸺) also explains that the 2-em can be used to mark an abrupt break in direct or reported speech, but a space is used before the 2-em if a complete word is missing, while no space is used if part of a word exists before the sudden break. Two examples of this are as follows:

  • I distinctly heard him say, "Go away or I'll ⸺".
  • It was alleged that D⸺ had been threatened with blackmail.

Approximating the em dash with two or three hyphens

[edit]

When an em dash is unavailable in a particularcharacter encodingenvironment—as in theASCIIcharacter set—it has usually beenapproximatedas consecutive double (--) or triple (---) hyphen-minuses. The two-hyphen em dash proxy is perhaps more common, being a widespread convention in thetypewritingera. (It is still described for hard copy manuscript preparation in theChicago Manual of Styleas of the 16th edition, although the manual conveys that typewritten manuscript and copyediting on paper are now dated practices.) The three-hyphen em dash proxy was popular with various publishers because the sequence of one, two, or three hyphens could then correspond to the hyphen, en dash, and em dash, respectively.

Because early comic booklettererswere not aware of the typographic convention of replacing a typewritten double hyphen with an em dash, the double hyphen became traditional in American comics. This practice has continued despite the development of computer lettering.[51][52]

En dash versus em dash

[edit]
These comparisons of thehyphen (-),n,en dash (–),m, andem dash (—),in various 12-point fonts, illustrate the typical relationship between lengths ( "- n – m —" ). In some fonts, the en dash is not much longer than the hyphen, and inLucida Grande,the en dash is actually shorter than the hyphen.

The en dash is wider than thehyphenbut not as wide as the em dash. Anem widthis defined as the point size of the currently used font, since the M character is not always the width of the point size.[53]In running text, various dash conventions are employed: an em dash—like so—or a spaced em dash — like so — or a spaced en dash – like so – can be seen in contemporary publications.

Various style guides and national varieties of languages prescribe different guidance on dashes. Dashes have been cited as being treated differently in the US and the UK, with the former preferring the use of an em dash with no additional spacing and the latter preferring a spaced en dash.[38]As examples of the US style,The Chicago Manual of StyleandThe Publication Manual of the American Psychological Associationrecommend unspaced em dashes. Style guides outside the US are more variable. For example,The Elements of Typographic Styleby Canadian typographerRobert Bringhurstrecommends the spaced en dash – like so – and argues that the length and visual magnitude of an em dash "belongs to the padded and corseted aesthetic of Victorian typography".[8]In the United Kingdom, the spaced en dash is the house style for certain major publishers, including thePenguin Group,theCambridge University Press,andRoutledge.However, this convention is not universal. TheOxford Guide to Style(2002, section 5.10.10) acknowledges that the spaced en dash is used by "other British publishers" but states that theOxford University Press,like "most US publishers", uses the unspaced em dash.Fowler's Modern English Usage,saying that it is summarising theNew Hart's Rules,describes the principal uses of the em dash as "a single dash used to introduce an explanation or expansion" and "a pair of dashes used to indicate asides and parentheses", without stipulating whether it should be spaced but giving only unspaced examples.[54]

The en dash – always with spaces in running text when, as discussed in this section, indicating a parenthesis or pause – and the spaced em dash both have a certain technical advantage over the unspaced em dash. Most typesetting and word processing expects word spacing to vary to supportfull justification.Alone among punctuation that marks pauses or logical relations in text, the unspaced em dash disables this for the words it falls between. This can cause uneven spacing in the text, but can be mitigated by the use ofthin spaces,hair spaces,or evenzero-width spaceson the sides of the em dash. This provides the appearance of an unspaced em dash, but allows the words and dashes to break between lines. The spaced em dash risks introducing excessive separation of words. In full justification, the adjacent spaces may be stretched, and the separation of words further exaggerated. En dashes may also be preferred to em dashes when text is set in narrow columns, such as in newspapers and similar publications, since the en dash is smaller. In such cases, its use is based purely on space considerations and is not necessarily related to other typographical concerns.

On the other hand, a spaced en dash may be ambiguous when it is also used for ranges, for example, in dates or between geographical locations with internal spaces.

Horizontal bar

[edit]

Thehorizontal bar(U+2015HORIZONTAL BAR), also known as aquotation dash,is used to introduce quoted text. This is the standard method of printingdialoguein some languages. The em dash is equally suitable if the quotation dash is unavailable or is contrary to the house style being used.

There is no support in the standard TeX fonts, but one can use\hbox{---}\kern-.5em---or an em dash.

Swung dash

[edit]

Theswung dash(U+2053SWUNG DASH) resembles a lengthenedtildeand is used to separate alternatives or approximates. Indictionaries,it is frequently used to stand in for the term being defined. A dictionary entry providing an example for the termhenceforthmight employ the swung dash as follows:

henceforth(adv.) from this time forth; from now on; "she will be known as Mrs. Wales "

Unicode

[edit]
Unicode characters with propertyDash=yes[55]
Code M and 5× Name Remark
U+002D - M----- hyphen-minus TheASCIIhyphen. Sometimes this is used in groups to indicate different types of dash. Inprogramming languagesit is used as theminus sign.
U+058A ֊ Armenian hyphen
U+05BE ־ Hebrew punctuation maqaf
U+1400 Canadian syllabics hyphen
U+1806 MONGOLIAN TODO SOFT HYPHEN
U+2010 M‐‐‐‐‐ hyphen The character that can be used to unambiguously represent a hyphen.
U+2011 M‑‑‑‑‑ non-breaking hyphen Also called "hard hyphen",[citation needed]denotes a hyphen after which noword wrappingmay apply. This is the case where the hyphen is part of atrigraphortetragraphdenoting a specific sound (like in the Swiss placename"S-chanf"), or where specific orthographic rules prevent a line break (like in Germancompoundsof single-letter abbreviations and full nouns, as "E-Mail" ).
U+2012 M‒‒‒‒‒ figure dash Similar to an en dash, but with exactly the width of a digit in the chosen typeface. The vertical position may also be centered on the zero digit, and thus higher than the en dash and em dash, which are appropriate for use with lowercase text in a vertical position similar to the hyphen. The figure dash may therefore be preferred to the en dash for indicating a closed range of values.[56]
U+2013 M––––– en dash
U+2014 M————— em dash
U+2015 M――――― horizontal bar
U+2053 M⁓⁓⁓⁓⁓ swung dash
U+207B M⁻⁻⁻⁻⁻ superscript minus Usually is used together withsuperscriptednumbers.
U+208B M₋₋₋₋₋ subscript minus Usually is used together withsubscriptednumbers.
U+2212 M−−−−− minus sign Anarithmeticoperationused inmathematicsto representsubtractionornegative numbers.Its glyph is consistent with the glyph of the plus sign, and it is centred on the zero digit, unlike the ASCII hyphen-minus andU+2010HYPHEN,that (especially the latter) are designed to match lowercase letters and are inconsistent with arithmetic operators.
U+2E17 DOUBLE OBLIQUE HYPHEN Used in ancient Near-Eastern linguistics.
U+2E1A HYPHEN WITH DIAERESIS Used mostly in German dictionaries and indicatesumlautof the stem vowel of a plural form.
U+2E3A two-em dash Supplemental Punctuation.
U+2E3B three-em dash
U+2E40 DOUBLE HYPHEN Used in the transcription of old German manuscripts.
U+2E5D OBLIQUE HYPHEN Used in medieval European manuscripts.[57]
U+301C M〜〜〜〜〜 WAVE DASH Wavy lines found in some East Asiancharacter sets.Typographically, they have the width of oneCJKcharacter cell (fullwidth form), and follow the direction of the text, being horizontal for horizontal text, and vertical for columnar. They are used as dashes, and occasionally as emphatic variants of thekatakanavowel extender mark.
U+3030 M〰〰〰〰〰 wavy dash
U+30A0 KATAKANA-HIRAGANA DOUBLE HYPHEN
U+FE31 PRESENTATION FORM FOR VERTICAL EM DASH Compatibility characters used inEast Asian typography.
U+FE32 PRESENTATION FORM FOR VERTICAL EN DASH
U+FE58 M﹘﹘﹘﹘﹘ SMALL EM DASH
U+FE63 M﹣﹣﹣﹣﹣ SMALL HYPHEN-MINUS
U+FF0D M----- FULLWIDTH HYPHEN-MINUS
U+10D6E 𐵮 GARAY HYPHEN
U+10EAD 𐺭 YEZIDI HYPHENATION MARK
Related Unicode characters with propertyDash=no
Code M and 5× Name Remark
U+005F _ M_____ low line ASCII underscore, usually a horizontal line below thebaseline(i.e. a spacing underscore). It is commonly used withinURLsandidentifiersin programming languages, where a space-like separation between parts is desired but a real space is not appropriate. As usual for ASCII characters, this character shows a considerable range ofglyphic variation;therefore, whether sequences of this character connect depends on thefontused. See alsoU+FF3F_FULLWIDTH LOW LINE
U+007E ~ M~~~~~ tilde Used in programming languages (e.g. for thebitwise NOToperator inC and C++). Itsglyphic representationvaries, therefore for punctuation in running text the use of more specific characters is preferred, seeabove.
U+00AD soft hyphen Used to indicate where a linemaybreak, as in acompound wordor between syllables.
U+00AF ¯ M¯¯¯¯¯ macron A horizontal line positioned atcap heightusually having the same length asU+005F_LOW LINE.It is a spacing character, related to the diacritic mark "macron".A sequence of such characters is not expected to connect, unlikeU+203EOVERLINE.
U+02C9 ˉ Mˉˉˉˉˉ modifier letter macron Aphonetic symbol(a line applied above the base letter).
U+02CD ˍ Mˍˍˍˍˍ modifier letter low macron A phonetic symbol (a line applied below the base letter).
U+02D7 ˗ M˗˗˗˗˗ modifier letter minus sign A variant of theminus signused in phonetics to mark aretractedor backed articulation. It may show small end-serifs.
U+02DC ˜ M˜˜˜˜˜ small tilde A spacing clone oftilde diacritic mark.
U+06D4 ۔ Arabic full stop
U+1428 Canadian syllabics final short horizontal stroke
U+1B78 Balinese musical symbol left-hand open pang
U+203E M‾‾‾‾‾ overline A character similar toU+00AF¯MACRON,but a sequence of such characters usually connects.
U+2043 M⁃⁃⁃⁃⁃ hyphen bullet A short horizontal line used as a listbullet.
U+223C M∼∼∼∼∼ tilde operator Used in mathematics. Ends not curved as much regular tilde. InTeXandLaTeX,this character can be expressed using the math mode command$\sim$.
U+23AF M⎯⎯⎯⎯⎯ horizontal line extension Miscellaneous Technical (Unicode block)."Used for extension of arrows".[58]Can be used in sequences to generate long connected horizontal lines.
U+23E4 M⏤⏤⏤⏤⏤ straightness Miscellaneous Technical (Unicode block).Represents linestraightnessin technical context.
U+2500 M───── box drawings light horizontal Box-drawing characters.Several similar characters from one Unicode block used to draw horizontal lines.
U+2501 M━━━━━ box drawings heavy horizontal
U+2796 M➖➖➖➖➖ heavy minus sign Unicode symbols.
U+2E0F paragraphos Ancient Greektextual symbol, usually displayed by a long low line.
U+3161 HANGUL LETTER EU Hangulletters used inKoreanto denote the sound[ɯ].
U+1173 HANGUL JUNGSEONG EU
U+30FC KATAKANA-HIRAGANA PROLONGED SOUND MARK Japanesechōonpu,used in Japanese to indicate a long vowel.
U+4E00 Một CJK UNIFIED IDEOGRAPH-4E00 Chinese characterfor "one",used in variousEast Asian languages.
U+A4FE Lisu punctuation comma Looks like a sequence of a hyphen and afull stop(period).
U+FF5E M~~~~~ Fullwidth tilde Compatibility character used inEast Asian typography.
U+10110 𐄐 Aegean number ten
U+10191 𐆑 roman uncia sign A symbol for anancient Romanunit of length.
U+1104B 𑁋 Brahmi punctuation line
U+11052 𑁒 Brahmi number one
U+110BE 𑂾 Kaithi section mark
U+1D360 𝍠 Counting rod unit digit one

In other languages

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In many languages, such asPolish,the em dash is used as an openingquotation mark.There is no matching closing quotation mark; typically a new paragraph will be started, introduced by a dash, for each turn in the dialogue.[citation needed]

Corpusstudies indicate that em dashes are more commonly used in Russian than in English.[59]In Russian, the em dash is used for the presentcopula(meaning 'am/is/are'), which is unpronounced in spoken Russian.

InFrench,em or en dashes can be used asparentheses(brackets), but the use of a second dash as a closing parenthesis is optional. When a closing dash is not used, the sentence is ended with a period (full-stop) as usual. Dashes are, however, much less common than parentheses.[citation needed]

InSpanish,em dashes can be used to mark off parenthetical phrases. Unlike in English, the em dashes are spaced like brackets, i.e., there is a space between main sentence and dash, but not between parenthetical phrase and dash.[60]For example: "Llevaba la fidelidad a su maestro—unbuenprofesor—hasta extremos insospechados."(In English: 'He took his loyalty to his teacher—agoodteacher—to unsuspected extremes.')[61]

See also

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Explanatory notes

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  1. ^InCambriaand many other typefaces, the length of the horizontal bar is equal to three quarters of an em dash or one and a half times an en dash.
  2. ^abOther style differences (e.g., APA "p.m." and "pp." vs. AMA "PM"and" pp ") are ignored for the purpose of this comparison.

References

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  1. ^abMcMillin, Scott, ed. (2001).The First Quarto of Othello.United Kingdom: Cambridge University Press. pp.2123.ISBN978-0-521-56257-7.
  2. ^Shakespeare, William (1619).M. VVilliam Shake-speare, his true chronicle history of the life and death of King Lear, and his three daughters: with the unfortunate life of Edgar, sonne and heire to the Earle of Glocester, and his sullen and assumed humour of Tom of Bedlam: as it was plaid before the Kings Majesty at White-hall, vppon S. Stephens night, in Christmas hollidaies, by his Maiesties seruants, playing vsually at the Globe on the banck-side.; True chronicle history of the life and death of King Lear and his three daughters; History of King Lear; Mr. William Shakespeare, his true chronicle history of the life and death of King Lear, and his three daughters.Printed for Nathaniel Butter. p.12r.
  3. ^Shakespeare, William (1622).The tragœdy of Othello, the Moore of Venice. As it hath beene diuerse times acted at the Globe, and at the Black-Friers, by his Maiesties Seruants.London: Nicholas Okes. pp.19.
  4. ^Blayney, Peter W. M. (1982).The texts of King Lear and their origins.United Kingdom: Cambridge University Press. p.5.ISBN978-0-521-22634-9.
  5. ^Swift, Jonathan (1733).On Poetry; a rapsody.Printed at Dublin, reprinted at London. p.8.
  6. ^"Dashes".MHRA Style Guide: A Handbook for Authors, Editors, and Writers of Theses(3rd ed.). London: Modern Humanities Research Association. 2020. § 5.2.Archivedfrom the original on 2 April 2021.Retrieved2 April2021.
  7. ^"General Punctuation, Range: 2000–206F"(PDF).Unicode 13.0 Character Code Charts.Unicode, Inc. 2000. p. 3 # 2015.Archivedfrom the original on 3 April 2021.Retrieved2 April2021.
  8. ^abcdBringhurst, Robert(2004).The elements of typographic style(third ed.). Hartley & Marks, Publishers. p. 80.ISBN978-0-88179-206-5.Retrieved10 November2020.
  9. ^"Alternate figures | Butterick's Practical Typography".practicaltypography.Retrieved25 June2024.
  10. ^Korpela, Jukka (2006).Unicode Explained.O'Reilly Media. p. 433.ISBN978-0-59610121-3.Archivedfrom the original on 8 November 2023.Retrieved19 October2017.
  11. ^"Figure dash in XeLaTeX".BPI.Google Blog spot. 9 August 2011.Archivedfrom the original on 21 February 2014.Retrieved28 March2013.
  12. ^abStewart, A. A. (1919).Typesetting: A Primer of Information About Working at the Case, Justifying, Spacing, Correcting, Making-up, and Other Operations Employed in Setting Type by Hand.Typographic Technical Series for Apprentices. Vol. Part II, No. 16. Chicago: Committee on Education, United Typothetae of America. p. 91.Archivedfrom the original on 24 March 2021.Retrieved10 November2020.
  13. ^ Southward, John(1884).Practical printing: a handbook of the art of typography(2nd ed.). J.M. Powell & Son. p.7.
  14. ^Spivak, Michael (1980).The joy of TEX: a gourmet guide to typesetting with the AMS-TEX macro package(2nd ed.). AMS Bookstore. p. 8.ISBN978-0-8218-2997-4.Archivedfrom the original on 31 July 2020.Retrieved1 July2020.
  15. ^abStrizver, Ilene (2010).Type Rules: The Designer's Guide to Professional Typography(3rd ed.).John Wiley & Sons.p. 200.ISBN978-0-470-54251-4.Archivedfrom the original on 29 July 2020.Retrieved1 July2020.
  16. ^Susan E. L. Lake & Karen Bean (2007).Digital Multimedia: The Business of Technology(2nd ed.). Cengage Learning. p. 128.ISBN978-0-538-44527-6.Archivedfrom the original on 25 February 2021.Retrieved1 July2020.
  17. ^French, Nigel (2006).InDesign type: professional typography with Adobe InDesign CS2.Adobe Press. p. 72.ISBN978-0-321-38544-4.Archivedfrom the original on 31 July 2020.Retrieved1 July2020.
  18. ^Edward D. Johnson (1991).The handbook of good English.Simon & Schuster.p. 335.ISBN978-0-671-70797-2.Archivedfrom the original on 31 July 2020.Retrieved1 July2020.
  19. ^Lamb, David. "Hyphens, En Dashes, and Em Dashes: Correct Usage".Academic Writing Tutor. Retrieved 2 September 2013.
  20. ^abGriffith, Benjamin W; et al. (2004).Pocket Guide to Correct Grammar.Barron's Pocket Guides. Woodbury, NY: Barron's Educational Series.ISBN0-7641-2690-3.
  21. ^abcdJudd, Karen (2001).Copyediting: A Practical Guide.Menlo Park, CA: Crisp Publications.ISBN1-56052-608-4.
  22. ^abcLoberger, Gordon; Welsh, Kate Shoup (2001).Webster's new world English grammar handbook.New York, NY: Hungry Minds.ISBN0-7645-6488-9.
  23. ^abcIves, George Burnham (1921).Text, type and style: A compendium of Atlantic usage.Atlantic Monthly Press.p.125.The en-dash... may stand for the word "and" or "to" in such phrases as "the Radical–Unionist Coalition", "the Boston–Hartford Air Line"; "the period of Republican supremacy, 1860–84"; "pp. 224–30".
  24. ^Garner, Bryan A.(2003).Garner's Modern American Usage(2nd ed.).Oxford University Press.p.657.ISBN978-0-19-516191-5.
  25. ^Garner, Bryan A. (2001).Legal Writing in Plain English: A Text with Exercises.Chicago Guides to Writing, Editing, and Publishing (illustrated, reprinted ed.).University of Chicago Press.p. 155.ISBN978-0-226-28418-7.Archivedfrom the original on 1 August 2020.Retrieved1 July2020– via Google Books.Use an en-dash as an equivalent ofto(as when showing a span of pages), to express tension or difference, or to denote a pairing in which the elements carry equal weight.
  26. ^Dupré, Lynn (1998).Bugs in Writing(Revised ed.). Addison Wesley Longman. p. 221.ISBN978-0-201-37921-1.Archivedfrom the original on 24 March 2021.Retrieved1 July2020– via Google Books.use en dashes when you have an equal-weighted pair serving as an adjective, such as love–hate relationship.
  27. ^"Dodd-Frank Wall Street Reform and Consumer Protection Act"(PDF).U.S. Government Publishing Office. 21 July 2010.Archived(PDF)from the original on 24 March 2021.Retrieved12 August2019.
  28. ^The American Heritage Guide to Contemporary Usage and Style.Houghton Mifflin Harcourt. 2005. p.129.ISBN978-0-618-60499-9.
  29. ^Lutz, Gary; Stevenson, Diane (2005).The Writer's Digest Grammar Desk Reference.Writer's Digest Books. p. 296.ISBN978-1-58297-335-7.Archivedfrom the original on 16 January 2017.Retrieved1 July2020– via Google Books.
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  31. ^Iverson, Cheryl; et al., eds. (2007), "8.3.1 Hyphen",AMA Manual of Style(10th ed.),American Medical Association/ Oxford University Press,ISBN978-0-19-517633-9
  32. ^The Chicago Manual of Style(15th ed.). University of Chicago Press. 2003. pp.261–265.ISBN0-226-10403-6.
  33. ^The Chicago Manual of Style(16th [online] ed.). University of Chicago Press. 2010. §6.80.
  34. ^Shaw, Harry (1986).Errors in English and Ways to Correct Them.New York: Harper & Row. p.185.ISBN0-06-097047-2.
  35. ^The Punctuation Guide,"En dash"Archived21 July 2019 at theWayback Machine.
  36. ^Nancy Tuten,"Hyphens, En Dashes, and Em Dashes: When to Use Them and How to Type Them"Archived30 July 2019 at theWayback Machine,Get It Write, 26 June 2019.
  37. ^Mignon Fogarty(2008).Grammar Girl's Quick and Dirty Tips for Better Writing.Holt Paperbacks.p. 97.ISBN9781429977494.Archivedfrom the original on 21 December 2019.Retrieved30 July2019.
  38. ^abWill, Hill (2010).The Complete Typographer: A Foundation Course for Graphic Designers Working With Type(3rd ed.). Thames and Hudson.ISBN978-0-500-28894-8.
  39. ^Zoe Williams (20 July 2021)."Who is to blame for the sweltering weather? My kids say it's boomers – and me".The Guardian.Archivedfrom the original on 22 July 2021.Retrieved21 July2021.
  40. ^"4.11.1 En rule",The Oxford Style Guide: New Hart's Rules(Second ed.), Oxford University Press, 2016, p.86,ISBN978-0-19-876725-1
  41. ^Ritter, Robert M. (2002).The Oxford Guide to Style.Oxford University Press. p.140.ISBN0-19-869175-0.The en rule is, as its name indicates, an en in length, which makes it longer than a hyphen and half the length of an em rule.
  42. ^Gomez-Palacio, Bryony; Vit, Armin (2009).Graphic Design, Referenced: A Visual Guide to the Language, Applications, and History of Graphic Design.Rockport. p.75.ISBN978-1-59253-447-0– via Internet Archive.
  43. ^"4.11.2 Em rule",New Hart's Rules: The Oxford Style Guide,Oxford University Press,archivedfrom the original on 21 February 2015,retrieved21 February2015
  44. ^Woods, Geraldine (2005).Webster's New World Punctuation: Simplified and Applied.Houghton Mifflin Harcourt. p. 114.ISBN978-0-7645-9916-3.Archivedfrom the original on 13 July 2020.Retrieved1 July2020– via Google Books.
  45. ^"Star Wars: EpisodeIV – A New Hope".IMDb.Archivedfrom the original on 24 March 2021.Retrieved10 August2011.
  46. ^The Chicago Manual of Style(16th ed.). Chicago University Press. §6.88, p. 335.
  47. ^Joyce, James(1922).Ulysses.London: The Bodley Head. p. 335, lines 7–11.
  48. ^abSheerin, Peter K (19 October 2001)."The Trouble With EM 'n EN (and Other Shady Characters)".A List Apart.Archivedfrom the original on 7 June 2018.Retrieved4 June2018.Three adjacent em dashes (a 3-em dash) are used to substitute for the author's name when a repeated series of works are presented in a bibliography, as well as to indicate an entire missing word in the text.HisPete's Guidewebsite has an updated version:Version 2.0—May 27, 2002Archived19 August 2018 at theWayback Machine.
  49. ^Yin, Karen (31 May 2016)."Em Dashes and Ellipses: Closed or Spaced Out?".AP vs. Chicago.Archivedfrom the original on 7 July 2014.Retrieved13 August2014.
  50. ^Yagoda, Ben. "Mad DashArchived15 January 2013 at theWayback Machine".The New York Times.22 October 2012. Accessed 31 May 2016.
  51. ^Piekos, Nate."Comic Book Grammar & Tradition".Archived fromthe originalon 21 December 2012.Retrieved29 December2012.
  52. ^Klein, Todd (23 September 2008)."Punctuating Comics: Dots and Dashes".Archivedfrom the original on 19 January 2013.Retrieved29 December2012.
  53. ^"A glossary of typographic terms".Adobe.Archivedfrom the original on 30 October 2007.Retrieved18 October2007.
  54. ^Fowler, H. W.; Butterfield, Jeremy (2015).Fowler's dictionary of modern English usage(4th ed.). Oxford; New York, NY: Oxford University Press. pp. 201–202.ISBN978-0-19-966135-0.
  55. ^"Dashes and Hyphens" in"Writing Systems and Punctuation"(PDF).The Unicode Standard Version 15.0 – Core Specification.The Unicode Consortium.September 2022. p. 269.ISBN978-1-936213-32-0.
  56. ^"Figure dash".TechWriter Wiki.Archived fromthe originalon 21 January 2018.Retrieved28 January2018.
  57. ^Everson, Michael (12 January 2021)."L2/21-036: Proposal to add the OBLIQUE HYPHEN"(PDF).Archived(PDF)from the original on 20 January 2022.Retrieved21 September2021.
  58. ^https:// unicode.org/charts/PDF/U2300.pdf#page=5
  59. ^Angelelli, Claudia V.; Jacobson, Holly E. (2009).Testing and assessment in translation and interpreting studies: A call for dialogue between research and practice.John Benjamins Publishing. p. 174.ISBN978-90-272-3190-1.Retrieved1 July2020.
  60. ^"Raya".Diccionario panhispánico de dudas(in Spanish) (2nd ed.). Madrid: FundaciónReal Academia Española.2005.
  61. ^"Uso de la raya (o guión largo)".UAM en linea(in Spanish). Mexico City:Universidad Autónoma Metropolitana.2007. Archived fromthe originalon 25 October 2018.Retrieved18 October2018.
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