data vs aggregation

data and aggregation both are nouns.

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

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

Other hypernyms of data include accumulation, assemblage, collection.

data (noun)	aggregation (noun)
a collection of facts from which conclusions may be drawn	the act of gathering something together
	several things grouped together or considered as a whole