Dictionary definition · menace
noun
- something that is a source of danger"earthquakes are a constant threat in Japan"
- a threat or the act of threatening"he spoke with desperate menace"
verb
- pose a threat to; present a danger to"The pollution is endangering the crops"
- express a threat either by an utterance or a gesture"he menaced the bank manager with a stick"
- act in a threatening manner"A menacing person"
Source: Open English WordNet (CC BY 4.0).