The word "cert" is short for "certificate", which is a document that serves as proof or evidence of something, often with a verification of skills, qualifications, or accomplishments.
"Cert" Examples
Cert
Examples:
The company requires all employees to have a cert in first aid after this summer. (The company demands that all employees receive a certificate in first aid after this summer.) I've just got my cert in scuba diving and can't wait to go on a vacation to the Great Barrier Reef. (I've just received my scuba diving certification and am excited to go on a vacation to the Great Barrier Reef.) The cert for the cooking class was sent to me via email, and I'm looking forward to getting started. (The certificate for the cooking class was sent to me via email, and I'm excited to begin.) The doctor gave me a cert for a surgery, and I'm feeling anxious about the procedure. (The doctor gave me a certificate for the surgery, and I'm feeling anxious about the procedure.) The cert for the driver's license course was extremely detailed and thorough. (The certificate for the driver's license course was extremely detailed and thorough.)