- to attest as certain; give reliable information of; confirm: He certified the truth of his claim.
- to testify to or vouch for in writing: The medical examiner will certify his findings to the court.
- to guarantee; endorse reliably: to certify a document with an official seal.
- to guarantee (a check) by writing on its face that the account against which it is drawn has sufficient funds to pay it.
- to award a certificate to (a person) attesting to the completion of a course of study or the passing of a qualifying examination.
- to declare legally insane and committable to a mental institution.
- to assure or inform with certainty.
- to give assurance; testify; vouch for the validity of something (usually followed by to).
- to confirm or attest (to), usually in writing
- to endorse or guarantee (that certain required standards have been met)
- to give reliable information or assurances
- to declare legally insane
- (of a bank) to state in writing on (a cheque) that payment is guaranteed
