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O grade

noun (formerly, in Scotland)
    1. the basic level of the Scottish Certificate of Education, now replaced by Standard Grade
    2. (as modifier)O grade history
  2. a pass in a particular subject at O gradeshe has ten O grades
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Also called: formal Ordinary grade
Compare Standard Grade
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012