swim
Americanverb (used without object)
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swims,
present (3rd person singular)
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swam,
past
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swum,
past participle
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swimming
present participle
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to move in water by movements of the limbs, fins, tail, etc.
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to float on the surface of water or some other liquid.
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to move, rest, or be suspended in air as if swimming in water.
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to move, glide, or go smoothly over a surface.
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to be immersed or steeped in or overflowing or flooded with a liquid.
eyes swimming with tears.
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to be dizzy or giddy; seem to whirl.
My head began to swim.
verb (used with object)
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swims,
present (3rd person singular)
-
swam,
past
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swum,
past participle
-
swimming
present participle
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to move along in or cross (a body of water) by swimming.
to swim a lake.
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to perform (a particular stroke) in swimming.
to swim a sidestroke.
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to cause to swim or float, as on a stream.
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to furnish with sufficient water to swim or float.
noun
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swims
plural
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an act, instance, or period of swimming.
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a motion as of swimming; a smooth, gliding movement.
idioms
verb
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(intr) to move along in water, etc, by means of movements of the body or parts of the body, esp the arms and legs, or (in the case of fish) tail and fins
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(tr) to cover (a distance or stretch of water) in this way
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(tr) to compete in (a race) in this way
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(intr) to be supported by and on a liquid; float
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(tr) to use (a particular stroke) in swimming
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(intr) to move smoothly, usually through air or over a surface
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(intr) to reel or seem to reel
my head swam
the room swam around me
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(intr; often foll by in or with) to be covered or flooded with water or other liquid
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to be liberally supplied (with)
he's swimming in money
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(tr) to cause to float or swim
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(tr) to provide (something) with water deep enough to float in
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to resist prevailing opinion
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to conform to prevailing opinion
noun
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the act, an instance, or period of swimming
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any graceful gliding motion
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a condition of dizziness; swoon
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a pool in a river good for fishing
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informal fashionable or active in social or political activities
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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swimsimple
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swimssimple
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have swumperfect
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has swumperfect
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am swimmingprogressive
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are swimmingprogressive
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is swimmingprogressive
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have been swimmingperfect progressive
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has been swimmingperfect progressive
Past
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swamsimple
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had swumperfect
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was swimmingprogressive
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were swimmingprogressive
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had been swimmingperfect progressive
Future
Etymology
Origin of swim
First recorded before 900; Middle English swimmen, Old English swimman; cognate with Dutch zwemmen, German schwimmen, Old Norse svimma
Explanation
When you move yourself through the water using your arms and legs, you swim. If you live near the ocean, it's probably a good idea to learn how to swim. You might decide to swim across the English Channel, or, if you're a little less adventurous, just swim in your town's swimming pool. When things appear to be submerged as if underwater, they swim too: "I like it when the mashed potatoes swim in gravy." And when something appears fuzzy or whirling, it also seems to swim: "I was so tired the equations on the chalkboard began to swim." The root of swim means "to be in motion."
Vocabulary lists containing swim
Words with Two Past-Tense Forms That Creeped (or Crept) into English
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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:
“And I’m actually used to the cold experience. My dad taught me to swim in cold water. That’s who I am.”
From Los Angeles Times ● Sep. 30, 2026
The result is especially notable because sharks lack the gas filled swim bladder found in many bony fish.
From Science Daily ● Sep. 30, 2026
Spirostomum ambiguum is a giant single-celled ciliate, named for the fringe of hairlike cilia it uses to swim.
From Science Daily ● Sep. 19, 2026
"I just get in the water, film and swim."
From BBC ● Sep. 14, 2026
“It’s okay. Tight squeeze back here. Great swim today.”
From "Red Flags and Butterflies" by Sheryl Azzam
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Nana the seal swims 200km back to island after missing humans.
From MarketWatch ● Sep. 25, 2026
It’s somewhat of an idyllic place where the seashore is lined with wooden houses; sheep graze along the grassy cliffsides and residents wander around the shops in bathrobes and clogs, right after their morning swims.
From Los Angeles Times ● Sep. 21, 2026
There are hikes and swims in a pristine lake.
From The Wall Street Journal ● Sep. 20, 2026
It has had a devastating effect on Helen, from Penrhyn-coch near Aberystwyth, Ceredigion, who went from enjoying sea swims and daily dog walks to "struggling to make new memories", according to daughter Jane Richards.
From BBC ● Apr. 12, 2026
I film Phil as he swims, capturing his grace, how his smooth strokes barely ripple the surface.
From "Love, Hate & Other Filters" by Samira Ahmed
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She swam across a river into China at night with a smuggler's help, and travelled through Laos, Vietnam and Thailand before finally flying to South Korea.
From Barron's ● Sep. 28, 2026
Most swam around a border fence and at least 100 people died during the crossing, according to figures from Ceuta's mayor.
From BBC ● Sep. 9, 2026
During the attack, the woman swam toward a rock to get away from the animal, but she said the otter climbed onto the rock and continued to strike her.
From Los Angeles Times ● Sep. 3, 2026
She swam a few more strokes, then felt something in the water, and turned around to see it slowly approaching.
From Barron's ● Aug. 31, 2026
Images flashed through Jonathan’s mind as he swam.
From "Earthquake Terror" by Peg Kehret
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He has swum against the tide and now he is very much in the train of modern football, and at the front.
From BBC ● Sep. 7, 2026
Early on Saturday, Spanish officials said they began installing a makeshift, inflatable barrier that extends out some 500 yards from a breakwater where some of the migrants had swum into the enclave.
From The Wall Street Journal ● Aug. 1, 2026
"It turned onto its back and they thought that it was dead. But by the time we went back, it was back onto its right side and it had swum a bit upstream," he explained.
From BBC ● May 5, 2026
An affidavit from Ghost tendered in court on Tuesday described how she and MacInnes had swum at the beach in the early evening of September 2023, returning to her apartment feeling cold.
From Barron's ● Apr. 28, 2026
They had stayed in motels, slept whole families to a single room, swum in pools that could be seen from the road.
From "The Namesake" by Jhumpa Lahiri
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There was a "luxury car parking area" on the grounds, according to ombudsman official Syafrida Rachmawati Rasahan, as well as a swimming pool and a gym.
From Barron's ● Sep. 30, 2026
Its anatomy shows that it was already highly specialized for swimming.
From Science Daily ● Sep. 29, 2026
The swimming pool retailer is expected to hand control to its lenders after struggling under a heavy debt load and declining sales.
From The Wall Street Journal ● Sep. 28, 2026
They also don’t have as clear a picture on things like the progress on plans to install a running track at the Los Angeles Memorial Coliseum and swimming pools inside SoFi Stadium in Inglewood.
From Los Angeles Times ● Sep. 28, 2026
The swimming incident, that was in September of 1937.
From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin
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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.