Meaning of “mo” in the English Dictionary

"mo" in British English

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monoun [ S ]

uk /məʊ/ us /moʊ/ UK informal

MOnoun [ C ]

uk /ˌemˈəʊ/ us /ˌemˈoʊ/ plural MOs

(Definition of “mo” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"MO" in Business English

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MOnoun [ C ]

uk us

COMMERCE written abbreviation for mail order :

MO business is dropping, while Internet-only purchases are up.

BANKING, MONEY written abbreviation for money order :

Include personal check or MO for $15 with your request.

(Definition of “MO” from the Cambridge Business English Dictionary © Cambridge University Press)