English

Noun

MMO ‎(plural MMOs)

1. (video games, initialism) A massively multiplayer online game. A computer game in which a large number of players can simultaneously interact in a persistent world.
2. (colloquial, initialism) A massively multiplayer online role-playing game.
3. (chemistry) methane monooxygenase

Usage notes

• Often used as a prefix, for example MMORPG for massively multiplayer online role-playing game or MMOFPS for massively multiplayer online first-person shooter. It is occasionally used for massive multiplayer online role-playing game, as it is the most common genre of online games.

Anagrams

• mom, Mom