English

Definition of CSYS abbreviation from the Oxford Advanced Learner's Dictionary

 

CSYS

 abbreviation
abbreviation
BrE BrE//siː ˌes waɪ ˈes//
 
; NAmE NAmE//siː ˌes waɪ ˈes//
 
 
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Certificate of Sixth Year Studies (an exam taken in the past by some Scottish school students at the age of around 18)