Definition of "Grade" :

noun: a variety of cattle produced by crossbreeding with a superior breed

noun: the gradient of a slope or road or other surface

"The road had a steep grade."

noun: a position on a scale of intensity or amount or quality

"A moderate grade of intelligence."

noun: the height of the ground on which something stands

"The base of the tower was below grade."

noun: a number or letter indicating quality (especially of a student's performance)

"Grade A milk."

noun: a degree of ablaut

noun: a body of students who are taught together

noun: one-hundredth of a right angle

noun: a relative position or degree of value in a graded group

"Lumber of the highest grade."

verb: determine the grade of or assign a grade to

verb: assign a grade or rank to, according to one's evaluation

"Grade tests."

verb: assign a rank or rating to

verb: level to the right gradient