The Collaborative International Dictionary of English v.0.48:

Charade \Cha*rade"\, n. [F. charade, cf. Pr. charrada long chat,
   It ciarlare to chat, whence E. charlatan.]
   A verbal or acted enigma based upon a word which has two or
   more significant syllables or parts, each of which, as well
   as the word itself, is to be guessed from the descriptions or
   representations.
   [1913 Webster]

WordNet (r) 3.0 (2006):

charade
    n 1: a composition that imitates or misrepresents somebody's
         style, usually in a humorous way [syn: parody, lampoon,
         spoof, sendup, mockery, takeoff, burlesque,
         travesty, charade, pasquinade, put-on]
    2: a word acted out in an episode of the game of charades

Moby Thesaurus II by Grady Ward, 1.0:

128 Moby Thesaurus words for "charade":
   Grand Guignol, Passion play, Tom show, absurdity, anagram,
   antimasque, audience success, ballet, bearing, beck, beckon,
   body language, bomb, broadcast drama, burlesque show, carriage,
   chironomy, cliff hanger, closet drama, comedy drama, conundrum,
   critical success, dactylology, daytime serial,
   deaf-and-dumb alphabet, dialogue, disguise, documentary drama,
   drama, dramalogue, dramatic play, dramatic series, dumb show,
   duodrama, duologue, epic theater, experimental theater,
   extravaganza, failure, farce, flop, gasser, gesticulation, gesture,
   gesture language, giveaway, hand signal, happening, hit, hit show,
   improvisational drama, kinesics, legitimate drama, logogriph,
   make-believe, masque, melodrama, minstrel show, miracle,
   miracle play, mockery, monodrama, monologue, morality,
   morality play, motion, movement, music drama, musical revue,
   mystery, mystery play, opera, pageant, panel show, pantomime,
   parody, pastoral, pastoral drama, piece, play, playlet, poise,
   pose, posture, pretension, pretentiousness, problem play,
   psychodrama, quiz show, radio drama, rebus, review, revue, riddle,
   sensational play, serial, show, shrug, sign language, sitcom,
   situation comedy, sketch, skit, soap, soap opera, sociodrama,
   spectacle, stage play, stage show, stance, straight drama, success,
   suspense drama, tableau, tableau vivant, talk show, teleplay,
   television drama, television play, theater of cruelty,
   total theater, travesty, variety show, vaudeville, vaudeville show,
   vehicle, word-of-mouth success, work