grader

Noun

1. A machine used in road maintenance, construction, and mining for leveling large surfaces.
   • The blade-grader is a long steel-framed carriage under which is fixed a steel blade capable of being tilted at various angles: its principal use is in trimming cutting-slopes. - 1943 September and October, “Railway...

   Hypernyms: heavy equipment

   Coordinate Terms: bulldozer dozer front-end loader

2. A machine used to sort food by size or quality.
3. One who grades, or that by means of which grading is done or facilitated.
   • the graders of a school examination
4. One who belongs to a certain grade at school.
   • a first-grader
   • The episode follows two different stories: in one, the show’s resident bigot, Eric Cartman, is outraged to learn that fellow fourth grader Clyde has risen to prominence as a white nationalist podcaster who makes...