Word.ws English Dictionary

MMO

UK/ˌɛm.ɛmˈəʊ/US/ˌɛm.ɛmˈoʊ/

MMO noun: maximum operating Mach number; the Mach number which an aircraft should not exceed in the course of routine operation. Also the initialism of massively multiplayer online game.

Noun

MMO (plural MMOs)

  1. Maximum operating Mach number; the Mach number which an aircraft should not exceed in the course of routine operation.

Also used as

MMO is also the initialism of massively multiplayer online game.

MMO is also the initialism of methane monooxygenase.

Forms of MMO

pluralMMOs

Questions about MMO

What does MMO mean?
MMO means maximum operating Mach number; the Mach number which an aircraft should not exceed in the course of routine operation.
What part of speech is MMO?
MMO is a noun.
How do you pronounce MMO?
MMO is pronounced /ˌɛm.ɛmˈəʊ/ (UK).
What is the plural of MMO?
The plural of MMO is MMOs.

Words near MMO in the dictionary

  1. mmm
  2. mmm-kay
  3. mmmkay
  4. mmmm
  5. MMN
  6. MMO
  7. MMOD
  8. MMOG
  9. MMOGs
  10. mmol
  11. mmol/d

Source and license

Adapted from Wiktionary: MMO (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “MMO.” Word.ws, https://word.ws/mmo. Based on Wiktionary, CC BY-SA 4.0.