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English definition of “Mother's Day”

Mother's Day

noun [C usually singular]     /ˈmʌð.əzˌdeɪ/ US  /-ɚz-/ (UK also Mothering Sunday)
a day each year when people give a card or present to their mother or do something special for herCelebrations, parties and special occasionsSpecific holidays and festivals
(Definition of Mother's Day noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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