Definitions
1.nounA person with poor judgment or little intelligence."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.nounSomeone who derives pleasure from something specified.
4.nounBuddy, dude, man.
5.nounA type of dessert made of puréed fruit and custard or cream."an apricot fool; a gooseberry fool"
6.noun(often capitalized, Fool) A particular card in a tarot deck, representing a jester.
7.verbTo trick; to deceive
8.verbTo act in an idiotic manner; to act foolishly
9.adjectiveFoolish.