1. [ adjective ] required by rule
Synonyms: required compulsory

"in most schools physical education are compulsory" "attendance is mandatory" "required reading"

Related terms: obligatory
2. [ noun ] (geography) a territory surrendered by Turkey or Germany after World War I and inhabited by people not yet able to stand by themselves and so put under the tutelage of some other European power
Synonyms: mandate
Related terms: territory Palestine
3. [ noun ] the recipient of a mandate
Synonyms: mandatary
Related terms: recipient mandate
Similar spelling:   mandator