abbreviation cert [noun] [C] - an official document which states that the information on it is truea birth/marriage/death certificateYou'll need a doctor's/medical certificate to prove that you've been too ill to go to work.My examination certificate (= document stating that I have passed an exam) arrived in the post today.Certificate sometimes refers to the qualification that you receive when you are successful in an exam.Jane's a qualified teacher now that she has her Certificate in Education.
CERTIFICATE
Meaning of CERTIFICATE in English
Cambridge English vocab. Кембриджский английский словарь. 2012