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April Fools' Day

American  

noun

  1. April 1, a day when practical jokes or tricks are played on unsuspecting people.

Etymology

Origin of April Fools' Day

First recorded in 1745–50; the variant All Fools' Day is first recorded in 1700–05

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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