A certificate of ownership of gold metal stored by another entity, used historically as a paper currency of the United States (1863–1933) and in modern times as a form of investment.

(Ireland, dated) A certificate awarded to Irish students who passed the state examinations at the end of the third or fourth year of a voluntary secondary school or boarding school.

A seal on paper appended to a specific artwork which is made to demonstrate that the item is authentic.

(computing) A certificate that uses a digital signature to bind together a public key with an identity — used to verify that a public key belongs to an individual.

(finance) A surrogate currency often used as a tool to control circulation of foreign exchange in countries where the national currency is subject to exchange controls or is not convertible. The certificates may be denominated in local or foreign currency, depending on the exact purpose of the regulation.

A gift certificate in digital form, to be spent on goods or services via the Internet.

A British qualification taken by secondary school students in England, Wales and Northern Ireland.