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

Syncope applies to the base so that the first syllable, mum, contains all of the first morpheme and some of the second.

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

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 …

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 …

Dec 20, 2025 · From Middle English mum or mom (“silent”), reminiscent of the sound made when gagged or with a hand over one's mouth. Perhaps related to dated German Mumme (“mask”).

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 …

mum's the word informal — used to say that some information is being kept secret or should be kept secret We want her birthday party to be a surprise, so mum's the word. [=don't tell her …