equal vs peer group

equal and peer group both are nouns.

Word	Noun	Adjective	Verb	Adverb
equal	Yes	Yes	Yes	No
peer group	Yes	No	No	No

equal (noun)	peer group (noun)
a person who is of equal standing with another in a group	contemporaries of the same status

equal (adjective)	peer group (adjective)
having the same quantity, value, or measure as another
having the requisite qualities or resources to meet a task

equal (verb)	peer group (verb)
make equal, uniform, corresponding, or matching
be identical or equivalent to
be equal to in quality or ability