the show of an intention to inflict evil; a threat or threatening; indication of a probable evil or catastrophe to come.-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.-to threaten, as an evil to be inflicted.-to act in threatening manner; to wear a threatening aspect.