plural of usage

A custom or established practice. / (uncountable) Custom, tradition. / The act of using something; use, employment.

(obsolete) One who has the use of anything held in trust for another.

plural of usager

bad, cruel or unkind treatment

market share

plural of usage share

plural of usage guide

(linguistics, education) A book that explains how to use a standardised language correctly and in keeping with currently accepted style, usually through the explication of what are conservatively viewed as language "errors".