make-peace vs go-between

make-peace and go-between both are nouns.

Word	Noun	Adjective	Verb	Adverb
make-peace	Yes	No	No	No
go-between	Yes	No	No	No

As nouns, go-between is a hypernym of make-peace; that is, go-between is a word with a broader meaning than make-peace:

Other hypernyms of make-peace include intercessor, intermediary, intermediator, mediator.

make-peace (noun)	go-between (noun)
someone who tries to bring peace	a negotiator who acts as a link between parties