sexual activity vs usance

sexual activity and usance both are nouns.

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

sexual activity (noun)	usance (noun)
activities associated with sexual intercourse	accepted or habitual practice
	(economics) the utilization of economic goods to satisfy needs or in manufacturing
	the period of time permitted by commercial usage for the payment of a bill of exchange (especially a foreign bill of exchange)