eccentric person vs nut

eccentric person and nut both are nouns.

Word	Noun	Adjective	Verb	Adverb
eccentric person	Yes	No	No	No
nut	Yes	No	Yes	No

As nouns, nut is a hyponym of eccentric person; that is, nut is a word with a more specific, narrower meaning than eccentric person:

Other hyponyms of eccentric person include crackpot, crank, fruitcake, nut case, screwball, nutter, wacko, whacko.

eccentric person (noun)	nut (noun)
a person with an unusual or odd personality	a small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt
	one of the two male reproductive glands that produce spermatozoa and secrete androgens
	someone who is so ardently devoted to something that it resembles an addiction
	a whimsically eccentric person
	usually large hard-shelled seed
	half the width of an em

eccentric person (verb)	nut (verb)
	gather nuts