Pronunciation (UK) IPA (key): /mɒm/ (US) enPR: mŏm, IPA (key): /mɑm/ or [mɑ̃m] (Canada) IPA (key): /mɒm/ or /mʌm/ Audio (US)(file) Noun Singular mom Plural moms (countable) (US) (informal) A short word for mother. Synonyms: mother, mum, mommy, mama and ma Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads