usance vs custom

usance and custom both are nouns.

Word	Noun	Adjective	Verb	Adverb
usance	Yes	No	No	No
custom	Yes	Yes	No	No

As nouns, usance and custom are synonyms defined as:

Other synonyms of usance include usage.

usance (noun)	custom (noun)
accepted or habitual practice	accepted or habitual practice
(economics) the utilization of economic goods to satisfy needs or in manufacturing	habitual patronage
the period of time permitted by commercial usage for the payment of a bill of exchange (especially a foreign bill of exchange)	a specific practice of long standing
	money collected under a tariff

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