1.Definition: a cavity or vessel used to contain liquid

Category: Objects

2.Definition: a deep hole or shaft dug or drilled to obtain water or oil or gas or brine

Category: Objects

3.Definition: an abundant source

"She was a well of information"

Related Noun(s):fountainhead

Category: General

4.Definition: an enclosed compartment in a ship or plane for holding something as e.g. fish or a plane's landing gear or for protecting something as e.g. a ship's pumps

Category: Objects

5.Definition: an open shaft through the floors of a building (as for a stairway)

Category: Objects