grading >> ɡreɪd
Definition: [verb] arrange in or allocate to grades; classify or sort.
Example: the timber is graded according to its thickness
Definition: [verb] give a mark to (a student or a piece of work).
Definition: [verb] pass gradually from one level, especially a shade of colour, into another.
Example: the sky graded from blue at the top of the shot to white on the horizon
Definition: [verb] reduce (a road) to an easy gradient.
Definition: [verb] cross (livestock) with a superior breed.