Noun

1. A body of students who are taught together
2. A relative position or degree of value in a graded group
3. The gradient of a slope or road or other surface
4. One-hundredth of a right angle
5. A degree of ablaut
6. A number or letter indicating quality (especially of a student's performance)
7. The height of the ground on which something stands
8. A position on a scale of intensity or amount or quality
9. A variety of cattle produced by crossbreeding with a superior breed

Verb

1. Assign a rank or rating to
2. Level to the right gradient
3. Assign a grade or rank to, according to one's evaluation
4. Determine the grade of or assign a grade to