a musical form with a recurring theme alternating with different sections

(physics) cyclotron

traffic circle; rotary; roundabout

room for maneuver; latitude or freedom of action; leeway

curved wooden tool that can be thrown as a weapon or for sport, often returning to the thrower

a staircase that circles around a central pole or winds in a curved shape

A tool or weapon that, when thrown, uses rotation and air friction to change direction and return to its origin; historically used for hunting.

a competitive sport where athletes navigate a decked canoe or kayak through gates on whitewater rapids