certificate
noun
səˈtɪfɪkət 
sərˈtɪfɪkət 
1 an official document that may be used to prove that the facts it states are truea birth/marriage/death certificate2 an official document proving that you have completed a course of study or passed an exam; a qualification obtained after a course of study or an exama Postgraduate Certificate in Education (= a British qualification for teachers)