fighter vs kamikaze

fighter and kamikaze both are nouns.

Word	Noun	Adjective	Verb	Adverb
fighter	Yes	No	No	No
kamikaze	Yes	No	No	No

As nouns, kamikaze is a hyponym of fighter; that is, kamikaze is a word with a more specific, narrower meaning than fighter:

fighter: a high-speed military or naval airplane designed to destroy enemy aircraft in the air
kamikaze: a fighter plane used for suicide missions by Japanese pilots in World War II

Other hyponyms of fighter include interceptor, stealth fighter.

fighter (noun)	kamikaze (noun)
a high-speed military or naval airplane designed to destroy enemy aircraft in the air	a fighter plane used for suicide missions by Japanese pilots in World War II
someone who fights (or is fighting)	a pilot trained and willing to cause a suicidal crash
someone who fights for a cause