mandatory

adjective

  1. 1

    required by rule

    in most schools physical education is compulsory

    attendance is mandatory

noun

  1. 1

    a territory surrendered by Turkey or Germany after World War I and put under the tutelage of some other European power until they are able to stand by themselves

  2. 2

    the recipient of a mandate

Synonyms

Also useful for “mandatory”:Unscrambler