sexual activity vs custom

sexual activity and custom both are nouns.

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

sexual activity (noun)	custom (noun)
activities associated with sexual intercourse	accepted or habitual practice
	habitual patronage
	a specific practice of long standing
	money collected under a tariff

sexual activity (adjective)	custom (adjective)
	made according to the specifications of an individual