Mother's Day

noun

Definition of Mother's Day

: the second Sunday in May appointed for the honoring of mothers

First Known Use of Mother's Day

1890, in the meaning defined above

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The first known use of Mother's Day was in 1890

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Mother's Day

noun

English Language Learners Definition of Mother's Day

: the second Sunday in May in the U.S. and the fourth Sunday in Lent in Britain treated as a special day for honoring mothers

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