XO

From Wikipedia, the free encyclopedia

XO or X0 may refer to:

In science and technology:

• Crystal oscillator
• XO Telescope and its related exoplanet survey
• XO sex chromosomes:
  • Turner Syndrome
  • X0 sex-determination system, as found in insects
• XO-1 laptop (previously known as the $100 Laptop or Children's Machine), produced by the One Laptop per Child association

Organisations:

• XO Communications, a telecom company

Music:

• XO (album), an album by Elliott Smith

Other meanings:

• Spain's LTE International Airways, IATA code for LTE International Airways
• Executive officer (military)
• Executive order, an edict issued by a member of the executive branch of a government.
• Tic-tac-toe, a game using X's and O's
• Eastern Orthodoxy (Christianity), from the Greek: Xristianos Orthodoksos (Χριστιανός Ορθόδοξος)
• The sequence of letters denoting hugs and kisses used to express affection in writing (e.g., XOXO)
• Badtz-Maru, often represented "XO", a character from Sanrio's Hello Kitty series
• XO sauce
• X-O Manowar, a comic book published by Valiant Comics in the 1990s.