nut vs em

nut and em both are nouns.

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

nut (noun)	em (noun)
a small (usually square or hexagonal) metal block with internal screw thread to be fitted onto a bolt	a quad with a square body
one of the two male reproductive glands that produce spermatozoa and secrete androgens	a linear unit (1/6 inch) used in printing
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)	em (verb)
gather nuts