Definition of mum noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 6, 2016 · The meaning of MUM is silent. How to use mum in a sentence.

mum noun [C] (FLOWER) short form of chrysanthemum (Definition of mum from the Cambridge Academic Content Dictionary © Cambridge University Press)

Jul 14, 2025 · This comprehensive glossary entry unravels the full meaning, definition, and etymology of "mum." Discover its various uses through examples, from informal address to …

There are seven meanings listed in OED's entry for the word mum, four of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Mum's the word is a popular English idiom. It is related to an expression used by William Shakespeare, in Henry VI, Part 2. [1] The word "mum" is an alteration of momme, which was …

Used as a command to stop speaking. Say nothing of the secret you know: Mum's the word on the surprise party. [Middle English mom, mum, perhaps imitative of closing one's lips.] 1. To …

Find similar words to mum using the buttons below. Mum definition: Not verbalizing; silent.

Mum is an adjective that means keeping quiet. It can also be used by itself to mean Be quiet! This sense of mum is especially used in the expressions keep mum and mum’s the word. In the …

He misses his mum. Mum and Dad are coming for lunch. Don't worry, Mum. You're about to become a mum.