rack up vs contend

rack up and contend both are verbs.

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

rack up (verb)	contend (verb)
supply a rack with feed for (horses or other animals)	to make the subject of dispute, contention, or litigation
defeat thoroughly	have an argument about something
gain points in a game	maintain or assert
place in a rack	compete for something; engage in a contest; measure oneself against others
	be engaged in a fight; carry on a fight
	succeed in doing, achieving, or producing (something) with the limited or inadequate means available