Definition of UO

The Meaning of UO

You have found the definitive source for the meaning of UO. This page contains all the definitions of UO, crowd sourced, moderated and curated by real people who care about the true definitions of UO.

The Top Definition of UO

The most popular meaning of UO is: Ultima Online (game)

What Other Meanings of UO Are There?

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What is UO?

UO is Ultima Online (game)

UO Means

The definition of UO is "Ultima Online (game)".

UO Definition

The meaning of UO

UO means Ultima Online (game).

Now you understand the definition of UO - UO means "Ultima Online (game)".

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What does UO mean? UO is an acronym, abbreviation or slang word that is explained above. If you ever forget what UO means, just come back to and we'll define any acronym you need help with.

  1. UR - Your
  2. UR - you are
  3. ;O - Joking
  4. XO - Hugs & Kisses
  5. SO - significant other
  6. IO - Input/Output
  7. UV - Unpleasant Visual
  8. 5O - police
  9. RUO - Weak (Chinese)
  10. XO - Kiss and Hug
  1. BWQ - Buzz Word Quotient
  2. CFC - chlorofluorocarbon
  3. DQMOT - don't quote me on this
  4. HANDLE - Half a gallon of liquor
  5. IQ - Intelligence Quotient
  6. LAQ - Lame Ass Quote
  7. OWTTE - Or Words To That Effect. Means "something like tha
  8. QFE - Quoted For Emphasis
  9. QFI - Quoted for irony
  10. QFMT - Quoted For More Truth