grader
//ˈɡreɪdər//
Noun
graderSingular
gradersPlural
1
A student in a specified grade at school.
My daughter is a third grader at the local elementary school.
2
A person or machine that grades something, especially one who assigns grades to students' work.
The grader finished marking all the exams by Friday.
3
A large machine used for leveling and smoothing surfaces, especially roads.
The grader smoothed the dirt road before paving.