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English definition of “mum”

mum

noun [C]   /mʌm/ UK informal (US mom)
A1 a mother: [as form of address] Happy birthday, Mum. All the mums and dads are invited to the school play at the end of the year. She loves being a mum.Names people call their close relatives
(Definition of mum noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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