compulsory
Concise Oxford English Dictionary © 2008 Oxford University Press:
compulsory/kəmˈpʌlsəri/
▶adjective required by law or a rule; obligatory.
■ involving or exercising compulsion; coercive.
– derivatives
compulsorily adverb,
compulsoriness noun.
compulsorily adverb,
compulsoriness noun.
'compulsory' also found in these Oxford entries:
advisory
- banal
- compulsory purchase
- discovery
- draft
- elective
- impost
- mandatory
- MOT
- mulct
- National Insurance
- national service
- obligatory
- -ory
- require
- requirement
- social insurance
- tax

