Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “MO”

MO

noun [C] uk   /ˌemˈəʊ/ us    /-ˈoʊ/ (plural MOs)

MO noun [C] (MONEY)

mainly US abbreviation for money orderForms of money and methods of payment

MO noun [C] (OFFICER)

abbreviation for medical officerDoctors and health workers generally
(Definition of MO noun from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of MO?
Add Cambridge dictionaries to your browser to your website

More meanings of “MO”

Definitions of “MO” in other dictionaries

Word of the Day

bitter

a type of dark brown beer with a bitter taste

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More