Successfully or effectively: gets along well with people.
In a comfortable or affluent manner: lived well.
In a manner affording benefit or gain; advantageously: married well.
With reason or propriety; reasonably: can't very well say no.
In all likelihood; indeed: You may well need your umbrella.
In a prudent or sensible manner: You would do well to say nothing more.
In a close or familiar manner: knew them well.
In a favorable or approving manner: spoke well of them.
Thoroughly; completely: well cooked; cooked well.
Perfectly; clearly: I well understand your intentions.
To a suitable or appropriate degree: This product will answer your needs equally well.
To a considerable extent or degree: well over the estimate.
With care or attention: listened well.
Entirely; fully: well worth seeing.
adj.
better, best
In a satisfactory condition; right or proper: All is well.
Not ailing, infirm, or diseased; healthy. See Synonyms at healthy.
Cured or healed, as a wound.
Of or characterized by the maintenance of good health practices. Often used in combination: a well-baby clinic; a well-child visit to the doctor.
Advisable; prudent: It would be well not to ask.
Fortunate; good: It is well that you stayed.
Advisable; prudent: It would be well not to ask.
Fortunate; good: It is well that you stayed.
interj.
Used to introduce a remark, resume a narrative, or fill a pause during conversation.
Used to express surprise.
[Middle English wel, from Old English; see wel-1 in Indo-European roots.]
Usage Note: English speakers have used well both as an adjective and as an adverb since Old English times. When applied to people, the adjective well usually refers to a state of health. Like similar adjectives, such as ill and faint, well in this use is normally restricted to the predicate, as in He hasn't been well lately. Well does see occasional use before a noun, as in Benjamin Franklin's "Poor Dick eats like a well man, and drinks like a sick." It also appears in compound adjectives like well-baby, which is well known to pediatricians and recent parents. Good, on the other hand, has a much wider range of senses, including "attractive," as in He looks good, and "competent," as in She's pretty good for a beginner, as well as "healthy." See Usage Note at good.
well (wěl) Pronunciation Key
A deep hole or shaft sunk into the Earth to tap a liquid or gaseous substance such as water, oil, gas, or brine. If the substance is not under sufficient pressure to flow freely from the well, it must be pumped or raised mechanically to the surface. Water or pressurized gas is sometimes pumped into a nonproducing oil well to push petroleum resources out of underground reservoirs. See also artesian well.
In addition, besides, also. For example, Mary is going to Italy and to France as well, or A fine conductor, he plays the violin as well. [1300s]
With an equal or similar result, as in Since he can't get there in time, he might as well stay at home, or It's just as well that you came today, since Harry is here, too. [1400s]
[wel] 
adverb, adjective, comparative bet⋅ter, superlative best, interjection, noun 