| 1. | a silly or stupid person; a person who lacks judgment or sense. |
| 2. | a professional jester, formerly kept by a person of royal or noble rank for amusement: the court fool. |
| 3. | a person who has been tricked or deceived into appearing or acting silly or stupid: to make a fool of someone. |
| 4. | an ardent enthusiast who cannot resist an opportunity to indulge an enthusiasm (usually prec. by a present participle): He's just a dancing fool. |
| 5. | a weak-minded or idiotic person. |
| 6. | to trick, deceive, or impose on: They tried to fool him. |
| 7. | to act like a fool; joke; play. |
| 8. | to jest; pretend; make believe: I was only fooling. |
| 9. | fool around,
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| 10. | fool away, to spend foolishly, as time or money; squander: to fool away the entire afternoon. |
| 11. | fool with, to handle or play with idly or carelessly: to be hurt while fooling with a loaded gun; to fool with someone's affections. |
| 12. | be nobody's fool, to be wise or shrewd. |