- the first, or ordinary, level of standardized examinations in specific subjects taken by British secondary-school students seeking either a General Certificate of Education and university admission or a Certificate only
- a pass on any examination at this level
See O level in American Heritage Dictionary 4
noun Chiefly British
- The earlier of two standardized tests in a secondary school subject.
- The educational background and skills required to pass this test.
Origin: O(rdinary) level