mythology vs collection

mythology and collection both are nouns.

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

As nouns, collection is a hypernym of mythology; that is, collection is a word with a broader meaning than mythology:

mythology: myths collectively; the body of stories associated with a culture or institution or person
collection: several things grouped together or considered as a whole

Other hypernyms of mythology include accumulation, aggregation, assemblage.

mythology (noun)	collection (noun)
the study of myths	the act of gathering something together
myths collectively; the body of stories associated with a culture or institution or person	a publication containing a variety of works
	request for a sum of money
	several things grouped together or considered as a whole