- a deep hole; pit.
- a hole formed in pavement, as by excessive use or by extremes of weather.
- a more or less cylindrical hole formed in rock by the grinding action of the detrital material in eddying water.
- a cave opening vertically from the ground surface.
- geography
- a deep hole in limestone areas resulting from action by running water
- a circular hole in the bed of a river produced by abrasion
- a deep hole, esp one produced in a road surface by wear or weathering
