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English definition of “mandatory”

mandatory

adjective     /ˈmændətəri/ US   /ˈmændəˌtɔri/
used to describe something that must be done, usually because the law states that it is necessary : He demanded mandatory reporting on environmental issues .mandatory for sb to do sth They would make it mandatory for everyone to have health insurance . → See also compulsory
(Definition of mandatory adjective from the Cambridge Business English Dictionary © Cambridge University Press)
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