nut vs geek

nut and geek both are nouns.

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

As nouns, geek is a hypernym of nut; that is, geek is a word with a broader meaning than nut:

Other hypernyms of nut include eccentric, eccentric person, flake, oddball.

nut (noun)	geek (noun)
a small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt	a person with an unusual or odd personality
one of the two male reproductive glands that produce spermatozoa and secrete androgens	a carnival performer who does disgusting acts
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

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