threesome vs assemblage

threesome and assemblage both are nouns.

Word	Noun	Adjective	Verb	Adverb
threesome	Yes	No	No	No
assemblage	Yes	No	No	No

As nouns, assemblage is a hypernym of threesome; that is, assemblage is a word with a broader meaning than threesome:

Other hypernyms of threesome include gathering.

threesome (noun)	assemblage (noun)
three people considered as a unit	the social act of assembling
the cardinal number that is the sum of one and one and one	a system of components assembled together for a particular purpose
	a group of persons together in one place
	several things grouped together or considered as a whole