triplet vs trio

triplet and trio both are nouns.

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

As nouns, triplet and trio are synonyms defined as:

Other synonyms of triplet include triad, triple.

As nouns, triplet and trio are synonyms defined as:

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

triplet (noun)	trio (noun)
a set of three similar things considered as a unit	a musical composition for three performers
one of three offspring born at the same time from the same pregnancy	three people considered as a unit
the cardinal number that is the sum of one and one and one	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