aggregation vs grouping

aggregation and grouping both are nouns.

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

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

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

Other hypernyms of aggregation include group.

aggregation (noun)	grouping (noun)
the act of gathering something together	any number of entities (members) considered as a unit
several things grouped together or considered as a whole	the activity of putting things together in groups
	a system for classifying things into groups