Flatten and Grade

Flatten verb - To make free from breaks, curves, or bumps.

Grade and flatten are semantically related in action topic. In some cases you can use "Grade" instead a verb "Flatten", when it comes to topics like level out.

Nearby Words: flatter, flatness, flattening, flatting

Grade verb - To arrange or assign according to type.

Flatten and grade are semantically related in activity topic. Sometimes you can use "Flatten" instead a verb "Grade", if it concerns topics such as action.

Nearby Words: graded, gradation, graduation, grading, grader