Well

a deep hole or shaft dug or drilled to obtain water or oil or gas or brine

a cavity or vessel used to contain liquid

an abundant source

an open shaft through the floors of a building (as for a stairway)

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

come up, as of a liquid

in good health especially after having suffered illness or injury

resulting favorably

wise or advantageous and hence advisable

(often used as a combining form) in a good or proper or satisfactory manner or to a high standard (`good' is a nonstandard dialectal variant for `well')

thoroughly or completely

indicating high probability

(used for emphasis or as an intensifier) entirely or fully

to a suitable or appropriate extent or degree

favorably

to a great extent or degree

with great or especially intimate knowledge

with prudence or propriety

with skill or in a pleasing manner

in a manner affording benefit or advantage

in financial comfort

without unusual distress or resentment