Longman Dictionary of Contemporary English homepage

mandatory

 adjective
     
man‧da‧to‧ry
if something is mandatory, the law says it must be done [= compulsory, obligatory; ↪ discretionary]
mandatory for
Crash helmets are mandatory for motorcyclists.
Murder carries a mandatory life sentence.
The Council has made it mandatory for all nurses to attend a refresher course every three years.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.
Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary