To conceal the personal identity of, by changes of guise or usual appearance, such as those produced by differences in dress or in the hair or beard, the use of a mask, etc.To conceal or cover up the real or original character of by a counterfeit form or appearance; cloak by false show, deceptive statement or speech, or an artificial manner: as, to disguise the handwriting; to disguise the taste of a drug; to disguise sentiments or intentions.To alter the appearance of; make difficult of recognition by some change not intended for concealment.To change in voice or behavior by the use of strong drink; intoxicate.To distinguish by a difference of form or guise.Synonyms Simulate, etc. (see dissemble), mask, veil.n. That which disguises; something that serves or is intended for concealment of identity, character, or quality; a deceptive covering, condition, manner, etc.n. The act of disguising, or the state of being disguised; a false or misleading appearance; concealment under a disguised form, manner, etc.: as, his attempted disguise was unsuccessful; a thief in disguise.n. Change of behavior and utterance by drink; intoxication.n. A masque; an interlude.