A slip road, also known as an exit ramp or an off ramp, is a short stretch of roadway that enables vehicles to enter or exit a highway at an off-ramp. There are many synonyms for the term slip road. In American English, it is commonly referred to as an exit ramp or off-ramp, while in British English, it is referred to as a slip road or slipway. Other synonyms for slip road include off-ramp, exit lane, departure lane, exit slip, and off slip. The use of a slip road is crucial for ensuring smooth traffic flow and preventing congestion on highways, making it an essential feature of any modern road network.