well
1 Americanadverb
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in a good or satisfactory manner.
Business is going well.
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thoroughly, carefully, or soundly.
to shake well before using; listen well.
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in a moral or proper manner.
to behave well.
- Synonyms:
- properly
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commendably, meritoriously, or excellently.
a difficult task well done.
- Synonyms:
- efficiently, accurately
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with propriety, justice, or reason.
I could not well refuse.
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adequately or sufficiently.
Think well before you act.
- Synonyms:
- adequately
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to a considerable extent or degree (often used in combination).
a sum well over the amount agreed upon;
a well-developed theme.
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with great or intimate knowledge.
to know a person well.
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certainly; without doubt.
I anger easily, as you well know.
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with good nature; without rancor.
He took the joke well.
adjective
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better,
comparative
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best
superlative
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in good health; sound in body and mind.
Are you well? He is not a well man.
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satisfactory, pleasing, or good.
All is well with us.
- Synonyms:
- fine
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proper, fitting, or gratifying.
It is well that you didn't go.
- Synonyms:
- appropriate, befitting, suitable
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in a satisfactory position; well-off.
I am very well as I am.
interjection
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(used to express surprise, reproof, etc.).
Well! There's no need to shout.
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(used to introduce a sentence, resume a conversation, etc.).
Well, who would have thought he could do it?
noun
idioms
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as well as, as much or as truly as; equally as.
Joan is witty as well as intelligent.
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as well,
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in addition; also; too.
She insisted on directing the play and on producing it as well.
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equally.
The town grew as well because of its location as because of its superb climate.
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leave well enough alone, avoid changing something that is satisfactory.
noun
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a hole drilled or bored into the earth to obtain water, petroleum, natural gas, brine, or sulfur.
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a spring or natural source of water.
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an apparent reservoir or a source of human feelings, emotions, energy, etc..
He was a well of gentleness and courtesy.
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a container, receptacle, or reservoir for a liquid.
the well of ink in a fountain pen.
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any sunken or deep, enclosed space, as a shaft for air or light, stairs, or an elevator, extending vertically through the floors of a building.
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Nautical.
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a part of a weather deck between two superstructures, extending from one side of a vessel to the other.
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a compartment or enclosure around a ship's pumps to make them easily accessible and protect them from being damaged by the cargo.
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a hollow compartment, recessed area, or depression for holding a specific item or items, as fish in the bottom of a boat or the retracted wheels of an airplane in flight.
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any shaft dug or bored into the earth, as for storage space or a mine.
verb (used without object)
verb (used with object)
adjective
noun
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a hole or shaft that is excavated, drilled, bored, or cut into the earth so as to tap a supply of water, oil, gas, etc
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a natural pool where ground water comes to the surface
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a cavity, space, or vessel used to contain a liquid
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( in combination )
an inkwell
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an open shaft through the floors of a building, such as one used for a staircase
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a deep enclosed space in a building or between buildings that is open to the sky to permit light and air to enter
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a bulkheaded compartment built around a ship's pumps for protection and ease of access
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another word for cockpit
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a perforated tank in the hold of a fishing boat for keeping caught fish alive
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(in England) the open space in the centre of a law court
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a source, esp one that provides a continuous supply
he is a well of knowledge
verb
contraction
adverb
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(often used in combination) in a satisfactory manner
the party went very well
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(often used in combination) in a good, skilful, or pleasing manner
she plays the violin well
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in a correct or careful manner
listen well to my words
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in a comfortable or prosperous manner
to live well
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(usually used with auxiliaries) suitably; fittingly
you can't very well say that
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intimately
I knew him well
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in a kind or favourable manner
she speaks well of you
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to a great or considerable extent; fully
to be well informed
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by a considerable margin
let me know well in advance
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indeed
you may well have to do it yourself
-
informal (intensifier)
well safe
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used ironically to express discontent, dissent, etc
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in addition; too
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with equal effect
you might as well come
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preferable or advisable
it would be just as well if you paid me now
-
-
in addition to
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to refrain from interfering with something that is satisfactory
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used to indicate calm acceptance, as of a decision
if you accept my offer, well and good
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well acquainted with (a particular subject); knowledgeable about
adjective
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(when prenominal, usually used with a negative) in good health
I'm very well, thank you
he's not a well man
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satisfactory, agreeable, or pleasing
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prudent; advisable
it would be well to make no comment
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prosperous or comfortable
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fortunate or happy
it is well that you agreed to go
interjection
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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.
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See also artesian well
Grammar
Sometimes an adverb like well is so often placed in front of and combined with a certain past participle in order to modify it that the resulting adjectival combination achieves the status of a common word and is listed in dictionaries. In Dictionary.com you will find, for example, entries for well-advised and well-mannered; for ill-advised, ill-bred, and ill-conceived; and for half-baked and half-cocked. Some of these terms are given full definitions, while others are considered such obvious combinations that you can figure out for yourself what they must mean. It is important to note, however, that compound adjectives like these are hyphenated for use before the noun they modify together. Thus we say that someone is “a well-loved professor,” but there would be no hyphen between well and loved in a sentence like “My English professor is well loved and deserves the award.” In a similar manner, adjectival compounds formed with better, best, little, lesser, least, etc., are also hyphenated when placed before the noun ( a little-understood theory ), but the hyphen is dropped when the adjectival combination follows the noun ( his films are best known in England ) or is itself modified by an adverb ( a too little understood theory ). There are exceptions to this pattern. For example, when the combining adverb ends in –ly, no hyphen is required, whether the resulting adjectival combination appears before or after the noun: a highly regarded surgeon; a surgeon who is highly regarded. Don’t let the hyphens fool you. Punctuation can be tricky!
Usage
See good.
See contraction.
Other Word Forms
Adjective Inflected Forms
Etymology
Origin of well1
First recorded before 900; Middle English adverb wel, wel(l)e, wil, Old English adjective and adverb wel(l); cognate with Dutch wel, Old High German wela, wola, German wohl, Old Norse vel, Gothic waila; akin to Old English wyllan “to wish,” Latin velle “to wish”; see also will 1 ( def. )
Origin of well2
First recorded before 900; Middle English noun wel(le), Old English wylle, wella, welle; cognate with German Welle “wave”; Middle English wellen, wel(le), Old English wellan, willan, wyllan; cognate with Dutch wellen, Old Norse vella; both noun and verb ultimately akin to weallan “to boil, bubble up”
Explanation
When you do something well, you do it in a good or satisfactory way. You can say, "I did really well on my French test," or "Finally, I slept well last night." When well is a noun, it means "a deep hole full of water or oil." When well is an adverb, it describes the way something's done. If you're not sure when to use well and when to use good, think about what you're describing. If it's a thing, then you can call it good, like a "good book." If you're talking about an action, you should use well: "I always do well on math quizzes," or "You speak Chinese really well."
Vocabulary lists containing well
Night of the Spadefoot Toads
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Selection Vocabulary 2, Unit 2
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Unit 7, Words to Know
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The Swedish forward took his fourth goal this season well and the chants of "Isak's a Red" from the travelling supporters, long after the final whistle, told you all you needed to know.
From BBC ● Sep. 20, 2026
Though undisclosed ads violate community guidelines on TikTok, Meta Platforms and YouTube—as well as Federal Trade Commission rules—the ecosystem is flourishing on each platform.
From The Wall Street Journal ● Sep. 20, 2026
During the 1710 siege of Tallinn, for example, the disease killed Swedish and Russian soldiers as well as civilians.
From Science Daily ● Sep. 20, 2026
“It’s fun money,” said Casey who, like Araujo, is a teacher as well as the clock operator at Galaxy games, where she works alongside her husband.
From Los Angeles Times ● Sep. 20, 2026
“Fine. But I’ll bet you that if this goes well, it could be the first of many regattas we host, and one way or another, you’re going to get in one.”
From "Red Flags and Butterflies" by Sheryl Azzam
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“Whether or not he plays is to be determined, and so we’ll see how he’s feeling.”
From Los Angeles Times ● Sep. 19, 2026
“There will be a point where a bunch of artists express worry about what we’re doing here and we’ll likely ignore their concerns and release anyway.”
From The Wall Street Journal ● Sep. 19, 2026
"When Shirley was born, as I had a friend in America I just thought we'll have Shirley," Kathleen said.
From BBC ● Sep. 19, 2026
De Palma’s movie finale never quite got us there, but maybe for a mystery we’ll never quite get over, that would have been impossible.
From Salon ● Sep. 18, 2026
“Let’s get a spot on the grandstand for the demolition derby. If we go now, we’ll get front row seats.”
From "Red Flags and Butterflies" by Sheryl Azzam
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An attempt of his own before the break was saved by Leno and another, better opportunity flew way over the bar.
From BBC ● Sep. 20, 2026
Stocks have also weathered the rise in rates better than many had feared, with corporate profits holding up and the AI trade intact.
From The Wall Street Journal ● Sep. 20, 2026
By examining these biological changes, researchers hope to better understand why exposure to certain additives may be associated with a higher risk of disease and whether the preservatives themselves are contributing to those effects.
From Science Daily ● Sep. 20, 2026
But the job is about more than discipline, and on that scale, Wiles is little better than Meadows.
From Salon ● Sep. 20, 2026
“Cross-lots off the rez is called trespassing. Other people’s property requires provable permission and you better be able to present that proof at a moment’s notice.”
From "Legendary Frybread Drive-In" by Cynthia Leitich Smith
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Bryan Mbeumo: A lot of strong runs but, like many Man Utd forwards, nowhere near his best.
From BBC ● Sep. 20, 2026
Where it gets trickier is when we look at the best guess of credibility, the term premium.
From The Wall Street Journal ● Sep. 20, 2026
To the best of scientists' knowledge, it has the same value everywhere in the cosmos.
From Science Daily ● Sep. 20, 2026
“California Republicans know what’s best for their districts,” the operative said.
From Los Angeles Times ● Sep. 20, 2026
“I wanted to go with my friends. Sukie’s son, Emery, was my best friend. Even picking cotton together, faint from heat, Emery made me laugh.”
From "Will’s Race for Home" by Jewell Parker Rhodes
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.