IPA: /ˈɡreɪ.dər/
KK: /ˈɡreɪdər/
A person who is a student in a specific grade level at school, or a machine used for leveling surfaces like roads.
The tenth grader was excited about the upcoming school dance.
Grader → It is formed from "grade" (from Latin *gradus*, meaning step or degree) and "-er" (meaning a person who). A grader is a person who assigns a step or degree of quality, often in an educational context.
Think of someone who assigns a 'step' or 'degree' of quality — that's what a grader does.