April Fools' Day

noun
variants: or less commonly April Fool's Day

Definition of April Fools' Day

:April 1 characteristically marked by the playing of practical jokes

First Known Use of april fools' day

1748


APRIL FOOLS' DAY Defined for English Language Learners

April Fools' Day

noun

Definition of April Fools' Day for English Language Learners

  • : April 1 celebrated as a day on which people play tricks on each other


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serious difficulty or misfortune

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