sex vs bisexual

sex and bisexual both are nouns.

Word	Noun	Adjective	Verb	Adverb
sex	Yes	No	Yes	No
bisexual	Yes	Yes	No	No

sex (noun)	bisexual (noun)
activities associated with sexual intercourse	a person who is sexually attracted to both sexes
the properties that distinguish organisms on the basis of their reproductive roles
all of the feelings resulting from the urge to gratify sexual impulses
either of the two categories (male or female) into which most organisms are divided

sex (adjective)	bisexual (adjective)
	sexually attracted to both sexes
	having an ambiguous sexual identity

sex (verb)	bisexual (verb)
tell the sex (of young chickens)
to evoke sexual feelings