something that threatens to cause evil, harm, injury, etc.; a threat

Air pollution is a menace to health.

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.

an extremely annoying person.

to utter or direct a threat against; threaten.

to serve as a probable threat to; imperil.

to express or serve as a threat.

noun

aid , assistance , help

verb

aid , assist , help

noun

annoyance , caution , commination , hazard , intimidation , jeopardy , nuisance , peril , plague , risk , scare , threat , thunder , trouble , troublemaker , warning , sword of damocles , anathema , charybdis , minacity , threatening

verb

alarm , bad-eye , browbeat , bully , chill , compromise , endanger , hazard , impend , imperil , intimidate , jeopardize , lean on , loom , lower , overhang , peril , portend , push around , put heat on , risk , scare , scare hell out of , spook , terrorize , threaten , torment , whip around , bludgeon , bulldoze , bullyrag , cow , hector , brew , hang over , bother , danger , frighten , jeopardy , pest , terrify , threat , troublemaker