noun, verb, -aced, -ac⋅ing.| 1. | something that threatens to cause evil, harm, injury, etc.; a threat: Air pollution is a menace to health. |
| 2. | a person whose actions, attitudes, or ideas are considered dangerous or harmful: When he gets behind the wheel of a car, he's a real menace. |
| 3. | an extremely annoying person. |
| 4. | to utter or direct a threat against; threaten. |
| 5. | to serve as a probable threat to; imperil. |
| 6. | to express or serve as a threat. |
