plural of fool to oneself

Alternative letter-case form of April fools

April Fools' Day.

Third-person singular simple present indicative form of fool about

If a person does not develop wisdom with age, then his or her foolishness is all the more obvious and shameful.

April 1, a day when practical jokes are traditionally played

The first day in April, when tricks and practical jokes are traditionally played

(idiomatic, chiefly in the negative) To be tolerant of stupidity or incompetence in other people.

Alternative form of suffer fools gladly

plural of April Fools' Day