express a threat either by an utterance or a gesture(verb.communication)
Example: He menaced the bank manager with a stick.
source: wordnet30
act in a threatening manner(verb.body)
source: wordnet30
To express or show an intention to inflict, or to hold out a prospect of inflicting, evil or injury upon; to threaten; -- usually followed by with before the harm threatened; as, to menace a country with war.(verb)
source: webster1913
To act in threatening manner; to wear a threatening aspect.(verb)