noun

1. FOOL, a person who is gullible and easy to take advantage of
2. FOOL, a person who lacks good judgment
3. FOOL, a professional clown employed to entertain a king or nobleman in the Middle Ages
4. FOOL, a person who lacks good sense or judgment : a stupid or silly person
5. FOOL, a person who enjoys something very much
6. FOOL, a dessert made with cooked fruit and cream or a thick sauce

verb

1. FOOL, indulge in horseplay
2. FOOL, fool or hoax
3. FOOL, spend frivolously and unwisely
4. FOOL, make a fool or dupe of
5. FOOL, to speak or act in a way that is not serious
6. FOOL, to make (someone) believe something that is not true : to trick (someone)

1. those fools who ride motorcycles without wearing helmets
2. Only a fool would ask such a silly question.
3. You'd be a fool to believe what he tells you.
4. The dog was barking its fool head off.
5. Some fool driver kept trying to pass me!
6. When she first told us that she was getting married, we thought she was fooling.
7. His disguise didn't fool anybody.
8. He really had me fooled.