[{"Bold_text": "noun", "List Items": ["a device in the transmission of a motor vehicle that automatically disengages the drive shaft whenever it begins to turn more rapidly than the engine.", "a form of rear bicycle wheel has a device freeing from the driving mechanism, as when the pedals are stopped in coasting."]}, {"Bold_text": "verb (used without object)", "List Items": ["(of a vehicle or its operator) to coast with the wheels from the driving mechanism.", "to move or function freely, independently, unconcernedly, or the like (often followed byabout, through, around,etc.):The two friends freewheeled around the country after graduation."]}]