square up vs compromise

square up is not a noun while compromise is a noun.

Word	Noun	Adjective	Verb	Adverb
square up	No	No	Yes	No
compromise	Yes	No	Yes	No

As verbs, compromise is a hyponym of square up; that is, compromise is a word with a more specific, narrower meaning than square up:

Other hyponyms of square up include clear, solve, concert, clinch.

square up (noun)	compromise (noun)
	a middle way between two extremes
	an accommodation in which both sides make concessions

square up (verb)	compromise (verb)
make square	settle by concession
settle conclusively; come to terms	make a compromise; arrive at a compromise
even up the edges of a stack of paper, in printing	expose or make liable to danger, suspicion, or disrepute