English Reference

Word

well

US/ˈwɛɫ/

UK/wˈɛl/

Adverb of manner

Definitions

01skillfully or successfully

A1 · Beginner

adv. to do something in a good way or with skill.

adv. in a manner that is satisfactory, skillful, or successful.

“She speaks English very well because she practices every day.”

“The project was well managed from the start, ensuring that all milestones were met ahead of the final deadline.”

Usage

placed after the verb or the object of the verb.

Pitfall

He plays the piano good.

He plays the piano well.

Use 'good' to describe a person or thing (adjective), but use 'well' to describe how someone does an action (adverb).

Antonyms

02completely or thoroughly

B1 · Intermediate

adv. completely or to a great degree.

adv. to a significant extent or degree; thoroughly.

“Make sure the meat is well cooked before you eat it.”

“The consequences of the new policy were well understood by the board before the final vote took place.”

Usage

often used before a past participle or prepositional phrase.

03very

C1 · Advanced British English · Slang · Informal

adv. used to emphasize an adjective, meaning 'very'.

adv. used as an intensifier meaning 'very' or 'extremely'.

“That movie was well good, you should definitely see it.”

“He was well annoyed when he found out his flight had been cancelled without any prior notice.”

Teaching tip

This is very common in modern British youth slang; learners should avoid it in formal writing.

04healthy

A1 · Beginner

adj. feeling healthy and not sick.

adj. in good health; free from illness or injury.

“I didn't feel well yesterday, so I stayed in bed.”

“Despite her advanced age, she remained remarkably well and continued to walk three miles every morning.”

Usage

usually used after a linking verb like 'be', 'feel', or 'look'.

Synonyms

Antonyms

05starting a sentence

A1 · Beginner

interj. a word used to start a sentence, often when you are thinking or changing the subject.

interj. used as a discourse marker to introduce a remark, express hesitation, or signal a transition.

“Well, I think we should go home now.”

“Well, if there are no further objections, I suggest we move on to the next item on the agenda.”

Synonyms

06water source

B1 · Intermediate Countable noun

n. a deep hole in the ground where people get water or oil.

n. a shaft or hole sunk into the earth for the purpose of obtaining water, oil, or gas.

“The village gets all its fresh water from a deep well in the center of town.”

“The company began drilling a new exploratory well in the North Sea to determine the size of the oil reserve.”

Synonyms

shaftborehole

07to flow out

B2 · Upper Intermediate Literary

v. to flow or come out of something steadily.

v. to rise or gush up from an internal source; often used figuratively for emotions.

“Tears started to well up in her eyes as she said goodbye.”

“A sense of profound relief welled up within him as the ship finally cleared the harbor and reached open waters.”

Usage

often used with the particle 'up'.

Synonyms

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “well” in context.

01. well known 02. well adapt 03. well define 04. well diversity 05. well establish 06. well suited 07. well understood 08. well aware 09. well tonight 10. well worth 11. well enough 12. well established

Etymology

From Middle English wel, wal, wol, wele, from Old English wel ("well, abundantly, very, very easily, very much, fully, quite, nearly"), from Proto-Germanic \wela, \wala ("well", literally "as wished, as desired"), from Proto-Indo-European \welh₁-* ("wish, desire").

Cognates include Yola vella, waal, wel, well, wull; Cimbrian boll, bóol; Dutch wel; German wohl, wol, woll; Danish, Icelandic, Norwegian Bokmål, and Norwegian Nynorsk vel; Faroese væl; Swedish väl, wäl; and Gothic 𐍅𐌰𐌹𐌻𐌰 (waila). Related to will.

From Old English wielle, descending through Middle English welle to modern English. The Old English form derives from Proto-West Germanic \wallijā and Proto-Germanic \wallijǭ, meaning well, swirl, wave — a root that carried senses of both the still source and the moving surface. Proto-Indo-European \welH-* underlies it, meaning to turn, wind, roll.

The Germanic cognates preserve different aspects: West Frisian wel, Dutch wel, and German Low German Well keep the well; German Welle has drifted to mean wave; Danish væld holds both well and spring; Swedish väl narrows to a well; Icelandic vella has moved on entirely, now describing boiling, bubbling, eruption. Each language chose which feature of turning water to retain.

From Middle English wellen, by merger of two Old English verbs: intransitive weallan and transitive wiellan, both meaning "to boil." Each traces separately to Proto-Germanic, wallaną and wallijaną respectively. The result is a doublet of wall.

Cognates survive across Germanic: German wallen ("boil, seethe"), Danish vælde ("gush"), Norwegian Nynorsk vella. Albanian valë ("hot, boiling") preserves an outside connection.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

ADVERB

well(A1)

Related words

Idioms

Grammar

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A1 MoversIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.2.0–3.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 1.0–1.50–23TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.120–224
Frequency
Very common
Level
A1 · Beginner
Updated

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