contend vs fence

contend is not a noun while fence is a noun.

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

As verbs, contend and fence are synonyms defined as:

Other synonyms of contend include argue, debate.

As verbs, fence is a hyponym of contend; that is, fence is a word with a more specific, narrower meaning than contend:

contend (noun)	fence (noun)
	a barrier that serves to enclose an area
	a dealer in stolen property

contend (verb)	fence (verb)
to make the subject of dispute, contention, or litigation	have an argument about something
have an argument about something	surround with a wall in order to fortify
maintain or assert	fight with fencing swords
compete for something; engage in a contest; measure oneself against others	enclose with a fence
be engaged in a fight; carry on a fight	receive stolen goods
succeed in doing, achieving, or producing (something) with the limited or inadequate means available