Certificate

Part of speech: noun (n.)

1. A written testimony to the truth of any fact; as, certificate of good behavior.

2. A written declaration legally authenticated. Trial by certificate, a trial which the testimony of the person certifying is the only proper criterion of the point in dispute; as, when the issue is whether a person was absent in the army, this is tried by the certificate of the proper officer in writing, under his seal. Blackstone.

Part of speech: verb (v.)

1. To verify or vouch for by certificate.

2. To furnish with a certificate; as, to certificate the captain of a vessel; a certificated teacher.