flirt vs sex

flirt and sex both are nouns.

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

flirt (noun)	sex (noun)
playful behavior intended to arouse sexual interest	activities associated with sexual intercourse
a seductive woman who uses her sex appeal to exploit men	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

flirt (verb)	sex (verb)
talk or behave amorously, without serious intentions	tell the sex (of young chickens)
behave carelessly or indifferently	to evoke sexual feelings