English

Definition of O grade noun from the Oxford Advanced Learner's Dictionary

 

O grade

 noun
noun
BrE
 
; NAmE
 
(also ordinary grade) [countable, uncountable]
 
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(in Scotland in the past) an exam in a particular subject, at a lower level than Highers, usually taken at the age of 16. In 1988 it was replaced by the Standard Grade.