- To formally attest to the truth of something, often by providing a certificate or other documentation.
- To attest to the qualifications or quality of something.
From middle english, from certifier ("to assure, confirm, attest"), from old french certifier, from latin certificare ("to certif.y")
- The organization certified her as a professional in her field.
- The doctor certified that the patient was fit to return to work.
- The government certified the election results.
- The product was certified to be safe for consumption.
- The official certified the document as a true copy.