Dictionary.com
definitions

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
a pass in a particular subject at O gradeshe has ten O grades

RELATED CONTENT

ATW: What does 🎃 - Jack-O-Lantern Emoji mean?Read more in this article about some frequently asked questions and fun facts related to our definitions.
READ MORE
Who Is Jack In Jack-o’-lantern, Anyway?Who, or what, is the namesake of this autumn tradition?
READ MORE
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