Definition of grader

The word "grader" has multiple origins, depending on its specific meaning: **1. School:** The word comes from the verb "grade," meaning to classify or arrange into categories. This meaning emerged in the late 19th century as schools began to implement standardized grading systems. **2. Construction:** The word "grader" refers to a piece of heavy machinery used to smooth and level land. This meaning originated in the early 20th century with the rise of mechanized construction. **3. Evaluation:** The word "grader" can also refer to a person who evaluates and assigns grades, like a teacher or professor. This usage aligns with the first meaning, emphasizing the act of assigning grades. In all cases, the root of "grader" lies in the concept of categorization, classification, or evaluation.