usance vs use

usance and use both are nouns.

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

As nouns, use is a hyponym of usance; that is, use is a word with a more specific, narrower meaning than usance:

usance: accepted or habitual practice
use: (psychology) an automatic pattern of behavior in reaction to a specific situation; may be inherited or acquired through frequent repetition

Other hyponyms of usance include Americanism, Anglicism, Britishism, consuetude, couvade, Germanism, habit, hijab, rite, ritual.

As nouns, usance and use are synonyms defined as:

usance and use: (economics) the utilization of economic goods to satisfy needs or in manufacturing

Other synonyms of usance include consumption, economic consumption, use of goods and services.

usance (noun)	use (noun)
accepted or habitual practice	the act of using
(economics) the utilization of economic goods to satisfy needs or in manufacturing	(psychology) an automatic pattern of behavior in reaction to a specific situation; may be inherited or acquired through frequent repetition
the period of time permitted by commercial usage for the payment of a bill of exchange (especially a foreign bill of exchange)	exerting shrewd or devious influence especially for one's own advantage
	what something is used for
	a particular service
	(law) the exercise of the legal right to enjoy the benefits of owning property
	(economics) the utilization of economic goods to satisfy needs or in manufacturing

usance (verb)	use (verb)
	put into service; make work or employ for a particular purpose or for its inherent or natural purpose
	take or consume (regularly or habitually)
	use up (resources or materials)
	habitually do something or be in a certain state or place (use only in the past tense)
	avail oneself to
	seek or achieve an end by using to one's advantage