definition of
grade

[1] #1 grade n. [class, form, course] a body of students who are taught together; "early morning classes are always sleepy". wn

[2] #2 grade n. [level, tier] a relative position or degree of value in a graded group; "lumber of the highest grade". wn

[3] #3 grade v. [rate, rank, range, order, place] assign a rank or rating to; "how would you rank these students?"; "The restaurant is rated highly in the food guide". wn

[4] #4 grade n. the gradient of a slope or road or other surface; "the road had a steep grade". wn

[5] #5 grade v. level to the right gradient. wn