fool

(noun) a person who lacks good judgment. Synonyms: sap, saphead, muggins, tomfool.

(noun) a person who is gullible and easy to take advantage of. Synonyms: chump, gull, mark, patsy, fall guy, sucker, soft touch, mug.

(noun) a professional clown employed to entertain a king or nobleman in the Middle Ages. Synonyms: jester, motley fool.

(verb) make a fool or dupe of. Synonyms: gull, befool.

(verb) spend frivolously and unwisely. Synonyms: fritter, frivol away, dissipate, shoot, fritter away, fool away. Example: "Fritter away one's inheritance."

(verb) fool or hoax. Synonyms: gull, dupe, slang, befool, cod, put on, take in, put one over, put one across. Examples: "The immigrant was duped because he trusted everyone." "You can't fool me!."

(verb) indulge in horseplay. Synonyms: horse around, arse around, fool around. Examples: "Enough horsing around--let's get back to work!." "The bored children were fooling about."