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Definition of mo

mo

/moʊ/
Plural:mos
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mo Lexical Profile

mo Game Scores & Validity

• noun

1

British A very brief period of time; a moment or second.

Example

"Just wait a mo while I grab my coat from the hallway."

2

American A written abbreviation for month.

Example

"The apartment lease requires a security deposit equal to 1 mo. of rent."

3

Australian A mustache, especially one grown on the upper lip.

Example

"He decided to grow a thick mo for the charity fundraising event in November."

Synonyms
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Antonyms
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• Rhymes for mo

• Nearby Words

mmm
mnemonic
mnemonics
mo
moa
moa river
moan

Cite this Entry

Wordmom. (2026). Definition of Mo. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/mo
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