aggregation vs collection

aggregation and collection both are nouns.

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

As nouns, aggregation and collection are synonyms defined as:

Other synonyms of aggregation include assembling, collecting.

As nouns, aggregation and collection are synonyms defined as:

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

Other synonyms of aggregation include accumulation, assemblage.

aggregation (noun)	collection (noun)
the act of gathering something together	the act of gathering something together
several things grouped together or considered as a whole	a publication containing a variety of works
	request for a sum of money
	several things grouped together or considered as a whole