Well refers to a hole in the ground, examples are oil well, gas well, water well, and wishing well.
See also:
"Well" is in the UNSPSC Code "20110000"
Well drilling and operation equipment
Ref: 122701/2006-09-22
Other Database Pages Exist for this Phrase:
Drainage Well (A Drainage Well is a well drilled to carry excess ...)
List of books: Well