What is the meaning of menace?

noun

• Something that is a source of danger.
  • usage: "earthquakes are a constant threat in Japan"
  • synonyms: threat
• A threat or the act of threatening.
  • usage: "he spoke with desperate menace"

verb

• Pose a threat to; present a danger to.
  • usage: "The pollution is endangering the crops"
  • synonyms: endanger, jeopardize, jeopardise, threaten, imperil, peril
• Express a threat either by an utterance or a gesture.
  • usage: "he menaced the bank manager with a stick"
• Act in a threatening manner.
  • usage: "A menacing person"