Also see definition of "ventriloquism" in Bible Study Dictionaries
Word Study
ventriloquism
CIDE DICTIONARY
ventriloquism, n. [See Ventriloquous.].
The act, art, or practice of speaking in such a manner that the voice appears to come, not from the person speaking, but from some other source, as from a dummy held by the ventriloquist, from the opposite side of the room, from the cellar, etc. [1913 Webster]
OXFORD DICTIONARY
ventriloquism, n. the skill of speaking or uttering sounds so that they seem to come from the speaker's dummy or a source other than the speaker.
Derivative
ventriloquial adj. ventriloquist n. ventriloquize v.intr. (also -ise).
Etymology
ult. f. L ventriloquus ventriloquist f. venter belly + loqui speak
ROGET THESAURUS
ventriloquism
Voice
N voice, vocality, organ, lungs, bellows, good voice, fine voice, powerful voice, musical voice, intonation, tone of voice, vocalization, cry, strain, utterance, prolation, exclamation, ejaculation, vociferation, ecphonesis, enunciation, articulation, articulate sound, distinctness, clearness, of articulation, stage whisper, delivery, accent, accentuation, emphasis, stress, broad accent, strong accent, pure accent, native accent, foreign accent, pronunciation, homonym, orthoepy, cacoepy, euphony, gastriloquism, ventriloquism, ventriloquist, polyphonism, polyphonist, phonology, vocal, phonetic, oral, ejaculatory, articulate, distinct, stertorous, euphonious, how sweetly sounds the voice of a good woman, the organ of the soul, thy voice is a celestial melody.Also see definition of "ventriloquism" in Bible Study Dictionaries
For further exploring for "ventriloquism" in Webster Dictionary Online