Quinn is our age but he jumped two school grades on academic excellence.
His grades were good, which helped.
Don't let your grades suffer.
Four different grades of institution for agricultural instruction are under state direction: (I) farm-schools and schools of apprenticeship in dairying, &c., to which the age of admission is from 14 to 16 years; (2) practical schools, to which boys of from 13 to 18 years of age are admitted.
How would you define grades? Add your definition here.