rack up vs par

rack up is not a noun while par is a noun.

Word	Noun	Adjective	Verb	Adverb
rack up	No	No	Yes	No
par	Yes	No	Yes	No

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

Other hyponyms of rack up include shoot, convert, homer, kick, eagle, hole up, ace, walk, equalise, equalize, get even, get, have, make.

rack up (noun)	par (noun)
	(golf) the standard number of strokes set for each hole on a golf course, or for the entire course
	a state of being essentially equal or equivalent; equally balanced

rack up (verb)	par (verb)
supply a rack with feed for (horses or other animals)	make a score (on a hole) equal to par
defeat thoroughly
gain points in a game
place in a rack