Definition of Well

Adverb: well wel

(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')
"the children behaved well"; "a task well done"; "the party went well"; "he slept well"; "a well-argued thesis"; "a well-seasoned dish"; "a well-planned party";
- good [N. Amer]
Thoroughly or completely; fully; often used as a combining form
"The problem is well understood"; "she was well informed"; "shake well before using"; "in order to avoid food poisoning be sure the meat is well cooked"; "well-done beef"; "well-satisfied customers"; "well-educated"
Indicating high probability; in all likelihood
"I might well do it"; "you may well need your umbrella"; "he could equally well be trying to deceive us";
- easily
(used for emphasis or as an intensifier) entirely or fully
"a book well worth reading"; "was well aware of the difficulties ahead"; "suspected only too well what might be going on"
To a suitable or appropriate extent or degree
"the project was well underway"; "the foetus has well developed organs"; "his father was well pleased with his grades"
Favourably; with approval
"their neighbours spoke well of them"; "he thought well of the book"
To a great extent or degree
"I'm afraid the film was well over budget"; "painting the room white made it seem well larger";
- considerably, substantially
With great or especially intimate knowledge
"we knew them well";
- intimately
With prudence or propriety
"You would do well to say nothing more"; "could not well refuse"
With skill or in a pleasing manner
"she dances well"; "he writes well"
In a manner affording benefit or advantage
"she married well";
- advantageously
In financial comfort
"They live well";
- comfortably
Without unusual distress or resentment; with good humour
"took the joke well"; "took the tragic news well"

Noun: well wel

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
"she was a well of information";
- wellspring, fountainhead
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

Adjective: well wel

In good health especially after having suffered illness or injury
"appears to be entirely well"; "the wound is nearly well"; "a well man"; "I think I'm well; at least I feel well"
Resulting favourably
"it is well that no one saw you"; "all's well that ends well";
- good
Wise or advantageous and hence advisable
"it would be well to start early"

Verb: well wel

Come up, as of a liquid
"the currents well up"; "Tears well in her eyes";
- swell

Contraction: we'll weel

We shall, we shall