economic consumption vs usance

economic consumption and usance both are nouns.

Word	Noun	Adjective	Verb	Adverb
economic consumption	Yes	No	No	No
usance	Yes	No	No	No

As nouns, economic consumption and usance are synonyms defined as:

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

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

economic consumption (noun)	usance (noun)
(economics) the utilization of economic goods to satisfy needs or in manufacturing	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)