XX

Fortechnical reasons,"X_X" and similar titles redirect here. For the keyboard symbol, seeList of emoticons.

XXorxxmay refer to:

• 20 (number),Roman numeral XX

Film and TV

• XX(film),a 2017 anthology horror film
• "XX", an episode ofCSI: Crime Scene Investigation(season 4)
• XX, the production code for the 1969Doctor WhoserialThe Seeds of Death
• XX(web series),a 2020 South Korean web series
• XX (organization),a fictional organisation in the comic and gameXIII

Genetics

• XX sex chromosomes, in theXY sex-determination system
  • XX male syndrome,also known as de la Chapelle syndrome, a rare congenital intersex condition resulting in a phenotypical male with two X chromosomes
  • XX gonadal dysgenesis,a type of female hypogonadism resulting in non-functioning ovaries
• XX sex chromosomes, in theXO sex-determination system
• afemale,an organism producing ova gametes that fuse with the male gamete during sexual reproduction, typically having two X chromosomes in the XY and X0 sex determination systems

Music

• The xx,an English indie rock band
• X_______X (band),an American no wave band

Albums

• Toto XX,a 1998 album by Toto
• XX(Mushroomhead album),2001
• xx(The xx album),2009
• XX(Great Big Sea album),2012
• XX – Two Decades of Love Metal,a 2012 compilation album by HIM
• XX(O.A.R. album),2016
• XX(Mino album),2018
• XX,a 2018 album byNote-oriety
• + +(EP),a 2018 EP, repackaged as[X X]in 2019, by Loona

Songs

• "xx", a song by Hayley Kiyoko fromExpectations
• "XX", a song by Feid fromFerxxo (Vol 1: M.O.R)

Organisations

• XX Bomber Command,an inactive United States Air Force unit
• XX Corps (disambiguation)
• Legio XX Valeria Victrixor Legion XX, a legion of the Roman Empire

Other uses

• XX(novel),a 2020 novel by Rian Hughes
• XX Systemor Double-Cross System, a British deception operation in the Second World War
• Les XX,a group of twenty Belgian painters
• Dos Equisor XX, a brand of Mexican beer
• xx,to expressexponentiationin the initial version of the FORTRAN programming language

See also

• All pages with titles containingXX
• 20 (disambiguation)
• Double Cross (disambiguation)
• X (disambiguation)
• XXX (disambiguation)
• XXXX (disambiguation)