What does "ventriloquism" mean?

The art of projecting one's voice without moving the lips so that it appears to come from another source, such as a dummy.

Ventriloquism

Common synonyms include: ventriloquy, puppet theater, puppet voice technique, sound localization illusion, stage ventriloquism, ventriloquial art.

noun

noun ·Rare ·Advanced level

Noun

1
The art of projecting one's voice without moving the lips so that it appears to come from another source, such as a dummy. countable, uncountable
2
the art of projecting your voice so that it seems to come from another source (as from a ventriloquist's dummy) wordnet

ventriloquy + -ism.