noun
Etymology: Middle English, from Anglo-French, from us use
Date: 14th century
1. firmly established and generally accepted practice or procedure, a uniform certain reasonable lawful practice existing in a particular locality or occupation and binding persons entering into transactions chiefly on the basis of presumed familiarity, the way in which words and phrases are actually used (as in a particular form or sense) in a language community,
2. the action, amount, or mode of using , manner of treating, see: habit