custom vs sex activity

custom and sex activity both are nouns.

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

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

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