"Certificates" Natural Recordings by Native Speakers
Certificates are official documents that serve as proof of achievement, recognition, or accreditation in a particular field or activity. They are often issued by an organization, institution, or government agency to individuals who have met specific requirements or standards. Examples of certificates include graduation certificates, diplomas, certificates of completion, and certification of skills or expertise.
"Certifiable" is an informal adjective that means extremely crazy, insane, or unstable. It is often used to describe someone or something that is wildly unpredictable, irrational, or beyond the bounds of normal behavior.