Dictionary
2 ENTRIES FOUND:

1mandatory

adjective man·da·to·ry \ˈman-də-ˌtr-ē\

: required by a law or rule

Full Definition of MANDATORY

1
:  required by a law or rule :  obligatory <the mandatory retirement age>
2
:  of, by, relating to, or holding a League of Nations mandate
man·da·tor·i·ly \-ˌtr-ə-lē\ adverb

Examples of MANDATORY

  1. <the tests are mandatory for all students wishing to graduate>
  2. Parents object to the mandatory nature of the shots—and the fact that their child's access to education hinges on compliance with the immunization regulations. —Alice Park, Time, 2 June 2008

Origin of MANDATORY

(see 1mandate)
First Known Use: 15th century

2mandatory

noun man·da·to·ry \ˈman-də-ˌtr-ē\
plural man·da·to·ries

Definition of MANDATORY

:  one given a mandate; especially :  a nation holding a mandate from the League of Nations

Origin of MANDATORY

(see 1mandate)
First Known Use: 1661

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