1. students in a particular grade level in school
2. people who evaluate and assign grades to academic work
3. heavy construction machines used to level and smooth surfaces

Examples

• The third graders are learning multiplication tables this year.
• Fifth graders will take a field trip to the science museum next week.
• The teaching assistants worked as graders for the final exams.
• Professional graders evaluated thousands of standardized tests.
• Road crews used graders to prepare the surface before paving.
• The construction company rented two graders for the highway project.
• Second graders practiced reading aloud in small groups.
• Graduate students often serve as graders for undergraduate courses.