Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
usance is a noun meaning "the period of time permitted by commercial usage for the payment of a bill of exchange (especially a foreign bill of exchange)". It carries 3 recorded senses.
the period of time permitted by commercial usage for the payment of a bill of exchange (especially a foreign bill of exchange)
commerce
(economics) the utilization of economic goods to satisfy needs or in manufacturing
“the consumption of energy has increased steadily”
economics
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for usance come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.