combat vs wrestle

combat and wrestle both are nouns.

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

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

Other hyponyms of combat include dogfight.

combat (noun)	wrestle (noun)
an engagement fought between two military forces	the act of engaging in close hand-to-hand combat
the act of fighting; any contest or struggle

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