English Reference

Word

knot

US/ˈnɑt/

UK/nˈɒt/

Definitions

01tied string or rope

B1 · Intermediate Countable noun

n. a place where you have tied a piece of string or rope together so it stays firm.

n. an interlacing or looping of a flexible material, such as rope or ribbon, drawn tight to form a fastening.

“He tied a tight knot in the rope to keep the boat from drifting away.”

“The climber checked every knot in the safety harness twice before beginning the final ascent up the granite face.”

Synonyms

02nautical speed unit

B2 · Upper Intermediate Countable noun Science Technical

n. a unit used to measure how fast a ship or an aircraft is moving.

n. a unit of speed equivalent to one nautical mile per hour, used in maritime and aviation contexts.

“The ship was travelling at twenty knots when it crossed the equator.”

“The aircraft maintained a steady speed of four hundred knots despite the significant headwind encountered over the Atlantic.”

Synonyms

nautical mile per hour

03lump in wood

B2 · Upper Intermediate Countable noun

n. a hard, round, dark spot in a piece of wood where a branch once grew.

n. a hard, cross-grained mass in a piece of timber, marking the point where a branch was joined to the trunk.

“The carpenter had to work carefully around a large knot in the oak plank.”

“The rustic aesthetic of the cabin was enhanced by the visible knots and natural imperfections in the pine panelling.”

Synonyms

gnarlwhorl

04muscle tension

B2 · Upper Intermediate Countable noun Medicine

n. a tight, painful feeling in a muscle that feels like a small lump.

n. a localized area of muscle contraction or tension that feels hard to the touch and causes discomfort.

“She had a painful knot in her shoulder after sitting at the computer all day.”

“The massage therapist focused on releasing the stubborn knots in the athlete's lower back after the marathon.”

Synonyms

05a small group

C1 · Advanced Countable noun Literary

n. a small group of people standing close together.

n. a small, closely gathered group of people or things.

“A small knot of reporters waited outside the courthouse for the verdict.”

“A small knot of protesters gathered at the gates, their quiet murmurs contrasting with the heavy silence of the evening.”

06to tie together

B2 · Upper Intermediate

v. to tie something into a knot or to become tangled.

v. to fasten or secure by forming a knot; also used intransitively to describe the process of becoming tangled.

“She knotted the ends of the scarf together to keep it from falling off.”

“The thread had knotted so badly during the sewing process that she was forced to cut it and start again.”

Synonyms

Antonyms

07stomach/muscles tightening

C1 · Advanced Literary

v. when your stomach or muscles feel tight because you are nervous or angry.

v. to tighten or contract painfully, typically due to emotional stress or physical tension.

“His stomach knotted with fear as he stepped onto the stage to speak.”

“Her brow knotted in deep concentration as she attempted to decipher the ancient manuscript's faded script.”

Synonyms

Antonyms

Etymology

From Middle English knotte, from Old English cnotta, from Proto-West Germanic knottō, from Proto-Germanic knuttô, knudô (“knot”); probably ultimately from Proto-Indo-European gnod- (“to bind”). See also Old High German knoto (German Knoten, Dutch knot, Low German Knütte; also Old Norse knútr > Danish knude, Swedish knut, Norwegian knute, Faroese knútur, Icelandic hnútur; also Latin nōdus and its Romance descendants. Doublet of knout, node, and nodus. * (unit of speed): From the practice of counting the number of knots in the logline (as it is paid out) in a standard time. Traditionally spaced at one every ¹⁄₁₂₀ of a mile.

Supposed to be derived from the name of King Canute, with whom the bird was a favourite article of food. See the specific epithet canutus.

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

Word family

NOUN

Related words

Idioms

Domains

AviationEngineeringMathematicsNautical

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.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL 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: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Frequent
Level
B1 · Intermediate
Updated

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