terzetto vs trio

terzetto and trio both are nouns.

Word	Noun	Adjective	Verb	Adverb
terzetto	Yes	No	No	No
trio	Yes	No	No	No

As nouns, terzetto and trio are synonyms defined as:

terzetto and trio: the cardinal number that is the sum of one and one and one

Other synonyms of terzetto include 3, deuce-ace, III, leash, tercet, ternary, ternion, three, threesome, tierce, trey, triad, trine, trinity, triplet, troika.

terzetto (noun)	trio (noun)
the cardinal number that is the sum of one and one and one	a musical composition for three performers
	three people considered as a unit
	a set of three similar things considered as a unit
	three performers or singers who perform together
	the cardinal number that is the sum of one and one and one