- deep natural underground cave formed by the erosion of rock, especially by the action of water.
- depression or hollow in a road surface caused by wear or subsidence. “he drove very cautiously over the potholes in the road”
- a pot-shaped hole in a road surface
- produce potholes in (the ground).”the road is being torn up and potholed by passing trucks”
- BRITISH explore underground caves as a pastime. “my mother and father met while they were potholing”