joust vs contend

joust is a noun but contend is not a noun.

Word	Noun	Adjective	Verb	Adverb
joust	Yes	No	Yes	No
contend	No	No	Yes	No

As verbs, contend is a hypernym of joust; that is, contend is a word with a broader meaning than joust:

Other hypernyms of joust include fight, struggle.

joust (noun)	contend (noun)
a combat between two mounted knights tilting against each other with blunted lances

joust (verb)	contend (verb)
joust against somebody in a tournament by fighting on horseback	to make the subject of dispute, contention, or litigation
	have an argument about something
	maintain or assert
	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