1 in compounds — Education
the level in elementary and high school marking to a year's academic work.
Type: 1. Origin — Canadians call the years of school grade one, grade two, grade three rather than, as in the US, first grade, second grade, third grade or the British first form, second form, third form. The difference between grade one and first grade is the most profound lexical difference in one study of Canada and US terms (Boberg 2005: 46), with 87 percent of Canadians reporting the former, but 98 percent of Americans reporting the latter.
2 n. — Education
a pupil in such a class, see meaning 1.
Type: 1. Origin — See COD-2, which labels this use "Cdn".