CSE /ˌsiː es ˈiː/ noun [countableC, uncountableU] (Certificate of Secondary Education) an examination in a range of subjects that was done by students in schools in England and Wales before 1988, usually at the age of 15 or 16 〔1988年之前英格兰和威尔士的〕中等教育证书考试 → GCSE