quintet vs gathering

quintet and gathering both are nouns.

Word	Noun	Adjective	Verb	Adverb
quintet	Yes	No	No	No
gathering	Yes	No	No	No

As nouns, gathering is a hypernym of quintet; that is, gathering is a word with a broader meaning than quintet:

Other hypernyms of quintet include assemblage.

quintet (noun)	gathering (noun)
a musical composition for five performers	the social act of assembling
five people considered as a unit	the act of gathering something
a set of five similar things considered as a unit	sewing consisting of small folds or puckers made by pulling tight a thread in a line of stitching
five performers or singers who perform together	a group of persons together in one place
the cardinal number that is the sum of four and one