—n. 1. a document serving as evidence or as written testimony, as of status, qualifications, privileges, or the truth of something.
2. a document attesting to the fact that a person has completed an educational course, issued either by an institution not authorized to grant diplomas, or to a student not qualifying for a diploma.
3. Law.a statement, written and signed, which is by law made evidence of the truth of the facts stated, for all or for certain purposes.
4. Finance. a. See gold certificate. b. See silver certificate.
—v.t. 1. to furnish with or authorize by a certificate.
2. to issue an official certificate attesting to the training, aptitude, and qualification of: to certificate a teacher.