To fill or be filled with air in an unintended cavity.
A top-facing opening to a cavity in the ground very near an ocean's shore, leading to a marine cave from which wave water or bursts of air are expelled.
The spiracle, on the top of the head, through which cetaceans breathe.
A vertical opening in the top of a computer case that lets hot air (primarily from the CPU heat sink) escape quickly.
A vent for the escape of steam or other gas.
An unintended cavity filled with air in a casting product.
To dig ditches around.
To dig ditches.
To throw into a ditch.
To discard or abandon.
To deliberately not attend classes; to play hookey.
To deliberately crash-land an airplane on water.
A trench; a long, shallow indentation, as for irrigation or drainage.
A raised bank of earth and the hedgerow on top.