eccentric vs nut

eccentric and nut both are nouns.

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

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

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

eccentric (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
a person of a specified kind (usually with many eccentricities)	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 (adjective)	nut (adjective)
not having a common center; not concentric
conspicuously or grossly unconventional or unusual

eccentric (verb)	nut (verb)
	gather nuts