curve

A gentle bend, such as in a road.

"You should slow down when approaching a curve."

A simple figure containing no straight portions and no angles; a curved line.

"She scribbled a curve on the paper."

A grading system based on the scale of performance of a group used to normalize a right-skewed grade distribution (with more lower scores) into a bell curve, so that more can receive higher grades, regardless of their actual knowledge of the subject.

"The teacher was nice and graded the test on a curve."

To bend; to crook.

"to curve a line"

To cause to swerve from a straight course.

"to curve a ball in pitching it"

To bend or turn gradually from a given direction.

"the road curves to the right"

Bent without angles; crooked; curved.

"a curve line"