wrestle vs writhe

wrestle is a noun but writhe is not a noun.

Word	Noun	Adjective	Verb	Adverb
wrestle	Yes	No	Yes	No
writhe	No	No	Yes	No

As verbs, wrestle and writhe are synonyms defined as:

wrestle and writhe: to move in a twisting or contorted motion, (especially when struggling)

Other synonyms of wrestle include squirm, twist, worm, wriggle.

wrestle (noun)	writhe (noun)
the act of engaging in close hand-to-hand combat

wrestle (verb)	writhe (verb)
engage in deep thought, consideration, or debate	to move in a twisting or contorted motion, (especially when struggling)
combat to overcome an opposing tendency or force
engage in a wrestling match
to move in a twisting or contorted motion, (especially when struggling)