mixture vs collection

mixture and collection both are nouns.

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

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

Other hypernyms of mixture include accumulation, aggregation, assemblage.

mixture (noun)	collection (noun)
the act of mixing together	the act of gathering something together
an event that combines things in a mixture	a publication containing a variety of works
any foodstuff made by combining different ingredients	request for a sum of money
a collection containing a variety of sorts of things	several things grouped together or considered as a whole
(chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)