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

 

O level

 noun
noun
BrE
 
; NAmE
 
(also ordinary level)[countable, uncountable]
 
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(in England and Wales in the past) an exam in a particular subject, at a lower level than A level, usually taken at the age of 16. In 1988 it was replaced by the GCSE. O level French She took six subjects at O level. He's got an O level in Russian. compare GCE