I was a fool to have quit my job.
An example of a fool is someone who constantly takes dangerous risks.
A holy fool.
They made a fool of me by pretending I had won.
A dancing fool; a fool for skiing.
Shouldn't fool with matches.
We were sure they would fail, but they fooled us.
Off on some fool errand or other.
A dancing fool.
An example of to fool is for a person to trick everyone into believing she is kind and generous when she is really a thief.
- To act in an irresponsible or foolish manner.
- To behave in a playful or comical manner.
- To be shrewd and capable.
- To spend time in trifling or pointless activity.
- To trifle or meddle.
- To engage in casual sexual activity.
- To fritter away foolishly.
- To act like a fool; do silly things; clown.
Origin of fool
- Middle English fol from Old French from Late Latin follis windbag, fool from Latin follis bellows bhel-2 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition