Definition of O grade in English:

O grade

noun

  • short for Ordinary Grade
    • ‘A former greyhound racer who passed his maths O grade at the age of 12, Brindley put his numerical skills to practical use 14 months ago when he turned pro.’
    • ‘Honestly, how much of O grade Physics can you remember and more importantly, how much of it did you understand?’

Pronunciation

O grade