XO

Abbreviation with 2 meanings

XO
Stands forExecutive officer
Meanings2
CategoriesMilitary, Texting & Internet Slang

XO has two meanings. It stands for Executive officer (military term) or Hug and kiss (texting and chat).

Meanings of XO at a glance

#XO stands forContext
1Executive officerMilitary › Military Term
2Hug and kissTexting & Internet Slang › Texting and Chat

1. Executive officer

Military · Military Term Abbreviations

Second-in-command of a military unit or ship, responsible for running the staff, administration and daily operations so the commander can focus on mission and leadership. A company XO is usually a first lieutenant; a ship's XO is typically a commander or lieutenant commander.

Example: The XO wants all department heads in the wardroom at 0700.

Navy XOs usually go on to command after a successful tour, and in many squadrons the XO "fleets up" to command the same unit. In texting, xo means hugs and kisses, and in government it can mean executive order. The British equivalent is the second-in-command (2IC).

2. Hug and kiss

Texting & Internet Slang · Texting and Chat Abbreviations

Affectionate sign-off at the end of cards, letters, emails and texts, with X standing for a kiss and O for a hug. A lighter alternative to the doubled XOXO.

Example: Have a great trip and send pictures, xo!

Common between friends, family and partners, and occasionally between close colleagues. The order is sometimes debated, but X is almost always read as the kiss. Warmer than a plain signature but too intimate for formal or professional messages.

More military term abbreviations

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  • AAR – After action review
  • ABU – Airman Battle Uniform
  • ACFT – Army Combat Fitness Test
  • ACU – Army Combat Uniform
  • AD – Active duty
  • AFQT – Armed Forces Qualification Test
  • AFSC – Air Force Specialty Code

See all 248 military term abbreviations →

More texting and chat abbreviations

  • WYD – What you doing?
  • WYM – What you mean?
  • WYWH – Wish you were here
  • XD – Laughing face (emoticon)
  • XOXO – Hugs and kisses
  • Y – Why
  • YKW – You know what
  • YMMV – Your mileage may vary

See all 215 texting and chat abbreviations →