to arrange people or things in groups according to their ability, quality, size, etc.
درجهبندی کردن, طبقهبندی کردن, ردهبندی کردن
The containers are graded according to size.
Eggs are graded from small to extra large.
Responses were graded from 1 (very satisfied) to 5 (not at all satisfied).
Ten beaches were graded as acceptable.
The grammar exercises are graded for difficulty.