certificate

Concise Oxford English Dictionary © 2008 Oxford University Press:
certificate

▶noun /səˈtɪfɪkət/ 

• 1 an official document attesting or recording a particular fact or event, a level of achievement, the fulfilment of a legal requirement, etc.

• 2 an official classification awarded to a cinema film by a board of censors, indicating its suitability for a particular age group.

▶verb /səˈtɪfɪkeɪt/ provide with or attest in an official document.

– derivatives
certification noun.

– origin ME: from Fr. certificat or med. L. certificat-, certificare (see certify).