What does MMO mean?

Massive Multiplayer Online - referring to a computer game that connects sometimes millions of players to an online gaming platform / community.

Other definitions of MMO:

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How to use the term MMO:

  • World of Warcraft (WoW) is a massively multiplayer online role-playing game (MMORPG) released in 2004 by Blizzard Entertainment.

More slang terms:



Lord of the Rings


Half an ounce (14 grams), typically when talking about chronic.