1. In sewing, to cut or remove excess fabric from a seam allowance from a finished seam: When Lynn's mother was shortening the skirt for her, she fist graded the extra length of material to reduce the bulk of material when turning up the fabric to the correct length when finishing the skirt.
2. To organize in age levels: The books for children in the shop were graded according to the reading ability of the kids.
3. To smnooth, flatten, or level a large surface of something: Before the building process could begin, the ground had to be graded.
4. To score students' tests after correcting them: Mrs. Smart had so many tests to read throughly, marking the mistakes the students made, and then, after resting and eating something, she had to grade them fairly.