geek vs nut

geek and nut both are nouns.

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

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

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

geek (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 carnival performer who does disgusting acts	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

geek (verb)	nut (verb)
to be intoxicated	gather nuts