definition of
usance

[1] #1 usance n. the period of time permitted by commercial usage for the payment of a bill of exchange (especially a foreign bill of exchange). wn

[2] #2 usance n. [consumption, economic consumption, use, use of goods and services] (economics) the utilization of economic goods to satisfy needs or in manufacturing; "the consumption of energy has increased steadily". wn

[3] #3 usance n. [custom, usage] accepted or habitual practice. wn