bunch vs agglomeration

bunch and agglomeration both are nouns.

Word	Noun	Adjective	Verb	Adverb
bunch	Yes	No	Yes	No
agglomeration	Yes	No	No	No

As nouns, agglomeration is a hypernym of bunch; that is, agglomeration is a word with a broader meaning than bunch:

bunch (noun)	agglomeration (noun)
a grouping of a number of similar things	the act of collecting in a mass; the act of agglomerating
an informal body of friends	a jumbled collection or mass
any collection in its entirety

bunch (verb)	agglomeration (verb)
gather or cause to gather into a cluster
form into a bunch