agglomerate vs assemblage

agglomerate and assemblage both are nouns.

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

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

Other hypernyms of agglomerate include accumulation, aggregation, collection.

agglomerate (noun)	assemblage (noun)
a collection of objects laid on top of each other	the social act of assembling
volcanic rock consisting of large fragments fused together	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

agglomerate (adjective)	assemblage (adjective)
clustered together but not coherent

agglomerate (verb)	assemblage (verb)
form into one cluster