Definitions
1.NounA person with poor judgment or little intelligence."You were a fool to cross that busy road without looking.; The village fool threw his own shoes down the well."
2.NounA jester; a person whose role was to entertain a sovereign and the court (or lower personages).
3.NounA stock character typified by unintelligence, naïveté or lucklessness, usually as a form of comic relief; often used as a source of insight or pathos for the audience, as such characters are generally less bound by social expectations.
4.NounSomeone who has been made a fool of or tricked; dupe.
5.NounSomeone who derives pleasure from something specified.
6.NounAn informal greeting akin to buddy, dude, or man.
7.NounA particular card in a tarot deck, representing a jester.
8.NounA tankie.
9.VerbTo trick; to deceive.
10.VerbTo act in an idiotic manner; to act foolishly.
11.VerbTo make a fool of; to make act the fool.
12.AdjectiveFoolish.
13.NounA type of dessert made of puréed fruit and custard or cream."; an apricot fool; a gooseberry fool"