ventriloquy vs artistry

ventriloquy and artistry both are nouns.

Word	Noun	Adjective	Verb	Adverb
ventriloquy	Yes	No	No	No
artistry	Yes	No	No	No

As nouns, artistry is a hypernym of ventriloquy; that is, artistry is a word with a broader meaning than ventriloquy:

ventriloquy: the art of projecting your voice so that it seems to come from another source (as from a ventriloquist's dummy)
artistry: a superior skill that you can learn by study and practice and observation

Other hypernyms of ventriloquy include art, prowess.

ventriloquy (noun)	artistry (noun)
the art of projecting your voice so that it seems to come from another source (as from a ventriloquist's dummy)	a superior skill that you can learn by study and practice and observation