fighter vs interceptor

fighter and interceptor both are nouns.

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

As nouns, interceptor is a hyponym of fighter; that is, interceptor 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
interceptor: a fast maneuverable fighter plane designed to intercept enemy aircraft

Other hyponyms of fighter include kamikaze, stealth fighter.

fighter (noun)	interceptor (noun)
a high-speed military or naval airplane designed to destroy enemy aircraft in the air	a fast maneuverable fighter plane designed to intercept enemy aircraft
someone who fights (or is fighting)
someone who fights for a cause