peer group vs equal

peer group and equal both are nouns.

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

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

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

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