prophylactic vs sex activity

prophylactic and sex activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
prophylactic	Yes	Yes	No	No
sex activity	Yes	No	No	No

prophylactic (noun)	sex activity (noun)
contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse	activities associated with sexual intercourse
remedy that prevents or slows the course of an illness or disease

prophylactic (adjective)	sex activity (adjective)
preventing or contributing to the prevention of disease
warding off
capable of preventing conception or impregnation