beaches

1. The shore of a body of water, especially when sandy or pebbly.
2. A horizontal strip of land, usually sandy, adjoining water.
3. The loose pebbles of the seashore, especially worn by waves; shingle.

1. To run aground on a beach.
2. To run (something) aground on a beach.
3. (of a vehicle) To run into an obstacle or rough or soft ground, so that the floor of the vehicle rests on the ground and the wheels cannot gain traction.

noun

A gravel-filled zone on a racetrack, used as a hazard, exclusionary region, and, safety device to slow down and trap vehicles.