compulsory

3 definitions • 4 examples

If something is compulsory, you must do it because of a rule or law:

Swimming was compulsory at my school.

The law made wearing seat belts in cars compulsory.

(of something) that must be done; necessary by law or a rule:

Education is compulsory for children between the ages of 5 and 16.

if something is compulsory, you must do it because of a law or rule:

compulsory (for sb) (to do sth) It isn't compulsory for employers to offer staff private healthcare, but many do.