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Definition of grader

grader

/ˈɡreɪdər/
Plural:graders
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grader Lexical Profile

grader Game Scores & Validity

• noun

1

North American A student in a specified grade at an elementary, middle, or high school, used in combination with an ordinal number.

Example

"Every fifth grader in the school participated in the annual science fair."

2

A person who evaluates, scores, or assigns grades to academic examinations, assignments, or agricultural commodities.

Example

"The professor hired a graduate student to work as a grader for the introductory lecture course."

3

A heavy wheeled construction machine equipped with a long adjustable metal blade, used to level and smooth soil or gravel surfaces during road building.

Example

"The road crew used a heavy motor grader to level the gravel bed before laying the asphalt."

Synonyms
View all synonyms for grader

• Rhymes for grader

• Nearby Words

grad
gradation
grade
grader
gradient
grading
gradual

Word Origin & Etymology

Formed in English from the verb 'grade' and the agentive suffix '-er', ultimately tracing back to the Latin 'gradus', meaning 'step' or 'degree'.

Cite this Entry

Wordmom. (2026). Definition of Grader. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/grader
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