prophylactic vs sexual activity

prophylactic and sexual activity both are nouns.

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

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