One who certificates.

An official document certifying the details of a person's birth. Name, date, and parents' names are always present; details such as parents' occupation and religion may be included.

Alternative form of birth certificate

(computing) An organization that issues digital certificates for use by other parties.

(computing) a public key certificate

A type of bank account representing a time deposit, which is insured, with a specific, fixed term, and, usually, a fixed interest rate.

plural of Leaving Certificate

A medical certificate.

A statement from a physician or other health care provider that attests to the result of a medical examination of a patient.

plural of birth certificate