1

See also:1̂,!1,1.,l,ӏ,Ӏ,ı,I,𐑑,↿,and①

1 U+0031,1 DIGIT ONE ←0 [U+0030] Basic Latin 2→ [U+0032]

Character variations

¹ U+00B9,¹ SUPERSCRIPT ONE ←¸ [U+00B8] Latin-1 Supplement º→ [U+00BA]

₁ U+2081,₁ SUBSCRIPT ONE ←₀ [U+2080] Superscripts and Subscripts ₂→ [U+2082]

１ U+FF11,１ FULLWIDTH DIGIT ONE ←０ [U+FF10] Halfwidth and Fullwidth Forms ２→ [U+FF12]

𝟏 U+1D7CF,𝟏 MATHEMATICAL BOLD DIGIT ONE ←𝟎 [U+1D7CE] Mathematical Alphanumeric Symbols 𝟐→ [U+1D7D0]

𝟙 U+1D7D9,𝟙 MATHEMATICAL DOUBLE-STRUCK DIGIT ONE ←𝟘 [U+1D7D8] Mathematical Alphanumeric Symbols 𝟚→ [U+1D7DA]

𝟣 U+1D7E3,𝟣 MATHEMATICAL SANS-SERIF DIGIT ONE ←𝟢 [U+1D7E2] Mathematical Alphanumeric Symbols 𝟤→ [U+1D7E4]

𝟭 U+1D7ED,𝟭 MATHEMATICAL SANS-SERIF BOLD DIGIT ONE ←𝟬 [U+1D7EC] Mathematical Alphanumeric Symbols 𝟮→ [U+1D7EE]

𝟷 U+1D7F7,𝟷 MATHEMATICAL MONOSPACE DIGIT ONE ←𝟶 [U+1D7F6] Mathematical Alphanumeric Symbols 𝟸→ [U+1D7F8]

① U+2460,① CIRCLED DIGIT ONE [unassigned: U+244B–U+245F] ←⑊ [U+244A] Enclosed Alphanumerics ②→ [U+2461]

🯱 U+1FBF1,🯱 SEGMENTED DIGIT ONE ←🯰 [U+1FBF0] Symbols for Legacy Computing 🯲→ [U+1FBF2]

Translingual

Glyph origin

Tenth century “West Arabic” variation of the Nepali form of Hindu-Arabic numerals (compare Devanagari script१(1,“éka”)), possibly influenced by Roman numeralⅠ,both ultimately from using a single stroke to represent the number one. See1 § As a digiton WikipediaWikipediafor more.

Symbol

1(previous0,next2)

1. Thecardinal numberone,a single thing or unit.
2. Adigitindecimaland every otherbasenumbering system, includingbinary,octal,andhexadecimal.

   15 × 134 =2010

   0010 0011₂(the number 35 in binary notation)

   0x1000E001(the number 268492801 in hexadecimal notation)

3. (mathematics)Theidentity elementwith respect tomultiplicationin aring.

   a×1=a

4. (computer science)Bitstate corresponding to binary digit 1, oronortrue.
5. (mathematics)ABooleanor truth value corresponding to true.

   f:B^k→ B:B = {0,1}

6. (mathematics)The one-pointtopological space,trivial ring,trivial group,acategorywith a single object or a (canonical)singleton.
7. (mathematics,set theory)indicator functionof aset.
8. (phonetics,often superscript)thepitchof atone,either high or low depending on local convention; '1' is most commonly the highest or lowest pitch (but see0)

   Synonyms:˥,˩

9. (phonetics,Sinosphere,often superscript)tone number 1, typically identified with dark levelyinping(Âm bình). May simply be levelpingtone (Bình) if theyin–yangdistinction is not made.

   Synonym:꜀

10. (linguistics,superscript)accent1inNorwegian,SwedishandLimburgish.

    Norwegian/Swedish toneme 1 is sometimes transcribed with a simple primary stress mark, that isˈ.

Gallery

• Letter styles
• 
  Lining digit1.
• 
  Oldstyle1inFrakturscript.

Alternative forms

The following forms are equivalent as a decimal digit:

• Arabic (Eastern) numerals:١
• Arabic (Western) numerals:1
• Assamese numerals:১
• Balinese numerals:᭑
• Bengali numerals:১
• Brahmi numerals:𑁧
• Chakma numerals:𑄷
• Cham numerals:꩑
• Devanagari numerals:१
• Dhives Akuru numerals:𑥑
• Gujarati numerals:૧
• Gurmukhi numerals:੧
• Hanifi Rohingya numerals:𐴱
• Javanese numerals:꧑
• Kannada numerals:೧
• Kawi numerals:𑽑
• Kayah Li numerals:꤁
• Khmer numerals:១
• Khudawadi numerals:𑋱
• Lanna numerals:(secular)᪁,(religious)᪑
• Lao numerals:໑
• Lepcha numerals:᱁
• Limbu numerals:᥇
• Malayalam numerals:൧
• Meitei numerals:꯱
• Mongolian numerals:᠑
• Myanmar numerals:၁
• N'Ko numerals:߁‎
• Ol Chiki numerals:᱑
• Odia numerals:୧
• Osmanya numerals:𐒡
• Persian numerals:۱
• Saurashtra numerals:꣑
• Sharada numerals:𑇑
• Sinhalese numerals:෧
• Sundanese numerals:᮱
• Takri numerals:𑛁
• Tamil numerals:௧
• Telugu numerals:౧
• Thai numerals:๑
• Tibetan numerals:༡
• Tirhuta numerals:𑓑
• Warang Citi numerals:𑣡

The following additional forms are equivalent as a cardinal number:

• Armenian numerals:Ա
• Brahmi numerals:𑁒
• Chinese numerals:Nhất,Nhất
• CJK tally marks:𝍲
• Counting rod numerals:𝍩
• Egyptian numerals:𓏺
• Ethiopic numerals:፩
• Gothic numerals:𐌰
• Greek numerals:Α΄,α΄
• Hebrew numerals:א
• Old Persian numerals:𐏑
• Roman numerals:I,i
• Sinhalese numerals:𑇡
• Tally marks:𝍷

Derived terms

Derived terms

• (select cardinal numbers containing ‘1’)10,11,12,...,100,101,102,...,1000,...,10,000,100,000,1,000,000,...
• (other select numbers containing ‘1’)-10,-1,-0.1,...,0.1,0.01,0.001,...
• +1

See also

• 1 (number) in Wikipedia
• (Arabic digits):0123456789

Other representations of 1:

Morse code:·–––– Braille:⠁ ASL Manual:1@Side-PalmBack

Signal flag(ICS and NATO):

Semaphore: After showing "numeric"

English

Pronunciation

• enPR:wŭn,IPA^(key):/wʌn/,IPA^(key):/wan/

• Audio(US):

  (file)

• Rhymes:-ʌn

Symbol

1

1. (Internetslang,leetspeak,sarcastic)Deliberate misspelling of!,imitating someone who is too excited to consistently press theshiftkey while typing exclamation marks.

   Synonyms:one,eleven

   A:someone hlep me pls im always losing!!!1!

   B:Thats bcuz ur st00pid!!!!!11!!oneone!!1!!eleven!1

2. (rare,gaming)Abbreviation ofone-shotorone-shotted.

Noun

1(plural1s)

1. (sports,skateboarding,snowboarding,skiing)Clipping of180.(180° spin)

Translations

deliberate misspelling of!

• Hungarian:4(hu)

Chinese

Pronunciation

• Mandarin

  (Pinyin):yī(yi¹)

  (Zhuyin):ㄧ

• Cantonese(Jyutping):jat¹

---

• Mandarin
  • (Standard Chinese)⁺
    • Hanyu Pinyin:yī
    • Zhuyin:ㄧ
    • Tongyong Pinyin:yi
    • Wade–Giles:i¹
    • Yale:yī
    • Gwoyeu Romatzyh:i
    • Palladius:и(i)
    • SinologicalIPA^(key):/i⁵⁵/
• Cantonese
  • (Standard Cantonese,Guangzhou–Hong Kong)⁺
    • Jyutping:jat¹
    • Yale:yāt
    • Cantonese Pinyin:jat⁷
    • Guangdong Romanization:yed¹
    • SinologicalIPA^(key):/jɐt̚⁵/

Noun

1

1. one
2. (gayslang)top

Synonyms

• (Hong Kong Cantonese)1 tử(jat¹zai²)

Derived terms

• 10

Related terms

• 0(líng)
• 0.5(língdiǎnwǔ)

German

Article

1

1. (text messaging)Abbreviationofein.

Swedish

The Nordic pharmacy chainApotek1.

Symbol

1

1. (Should wedelete⁽⁺⁾this sense?)Thenumberone(1).

   Synonyms:ett,en

2. (Internetslang,leetspeak,sarcastic)Deliberate misspelling of!

Suffix

1

1. (nonstandardsuffix)-et(“singular indefinite nominative;the”)

   Apotek1

   ThePharmacy

   Bud1

   TheCourier

2. (nonstandardsuffix)-et(“neuter singular”)

   Mog1av dig.

   Very matureof you.

Derived terms

• mog1(“mature”)(slang)