usance vs hijab

usance and hijab both are nouns.

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

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

usance: accepted or habitual practice
hijab: the custom in some Islamic societies of women dressing modestly outside the home

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

usance (noun)	hijab (noun)
accepted or habitual practice	the custom in some Islamic societies of women dressing modestly outside the home
(economics) the utilization of economic goods to satisfy needs or in manufacturing	a headscarf worn by Muslim women; conceals the hair and neck and usually has a face veil that covers the face
the period of time permitted by commercial usage for the payment of a bill of exchange (especially a foreign bill of exchange)