"menaces" in the noun sense
1. menace, threat
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"
"menaces" in the verb sense
1. endanger, jeopardize, jeopardise, menace, threaten, imperil, peril
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: WordNet® (An amazing lexical database of English)
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