assemblage vs aggregation

assemblage and aggregation both are nouns.

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

As nouns, assemblage and aggregation are synonyms defined as:

assemblage and aggregation: several things grouped together or considered as a whole

Other synonyms of assemblage include accumulation, collection.

assemblage (noun)	aggregation (noun)
the social act of assembling	the act of gathering something together
a system of components assembled together for a particular purpose	several things grouped together or considered as a whole
a group of persons together in one place
several things grouped together or considered as a whole