mixture vs aggregation

mixture and aggregation both are nouns.

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

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

Other hypernyms of mixture include accumulation, assemblage, collection.

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