collection vs grouping

collection and grouping both are nouns.

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

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

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

Other hypernyms of collection include group.

collection (noun)	grouping (noun)
the act of gathering something together	any number of entities (members) considered as a unit
a publication containing a variety of works	the activity of putting things together in groups
request for a sum of money	a system for classifying things into groups
several things grouped together or considered as a whole