The meaning of FOOL is a person lacking in judgment or prudence. How to use fool in a sentence.

FOOL meaning: 1. a person who behaves in a silly way without thinking: 2. to trick someone or make someone…. Learn more.

A person whose behaviour suggests a lack of intelligence, common sense, or good judgement; a silly person, an idiot; (now often) a person who acts unwisely or imprudently on a particular …

If you call someone a fool, you are indicating that you think they are not at all sensible and show a lack of good judgment.

1. To deceive or trick; dupe: "trying to learn how to fool a trout with a little bit of floating fur and feather" (Charles Kuralt). 2. To confound or prove wrong; surprise, especially pleasantly: We …

Fool comes from follis, a Latin word that means "bellows" or "leather bag." Later, it came to be used for an empty-headed person.

FOOL definition: a silly or stupid person; a person who lacks judgment or sense. See examples of fool used in a sentence.

When you call someone a fool, you either mean he's gullible or just a run-of-the-mill idiot. To fool also means to play a trick or hoax on someone, and fooling around is carelessly spending time …

Dec 14, 2025 · fool (plural fools) (derogatory) A person with poor judgment or little intelligence. quotations

Definition of fool noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.