sweater
Americannoun
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sweaters
plural
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a knitted jacket or jersey, in pullover or cardigan style, with or without sleeves.
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a person or thing that sweats.
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an employer who underpays and overworks employees.
adjective
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of, for, or pertaining to a sweater.
sweater yarn; sweater fashions.
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made like a sweater.
a sweater dress.
noun
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a garment made of knitted or crocheted material covering the upper part of the body, esp a heavy one worn for warmth
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( as modifier )
a sweater dress
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a person or thing that sweats
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an employer who overworks and underpays his employees
Other Word Forms
Noun Inflected Forms
Etymology
Origin of sweater
1520–30 sweater for def. 2; 1880–85 sweater for def. 1; sweat + -er 1
Explanation
A sweater is a knitted piece of clothing that covers the top part of your body. Some people have ugly Christmas sweater contests—and if you wear your neon green reindeer sweater covered with pom-poms, you just might win! In Britain it's a jumper, but in most of North America, it's a sweater. You put on a sweater either by pulling it over your head (if it's a pullover), or by putting your arms in the sleeves and shrugging it onto your shoulders (if it's a cardigan). As you might have guessed, sweater comes from sweat—the earliest sweaters were worn by rowers, and were intended "to produce sweating and reduce weight."
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:
If Charles wore a particular sweater, you’d best not wear one that looked similar.
From The Wall Street Journal ● Jun. 10, 2026
She’s in a navy sweater; I’m starting to envy her knitwear.
From Slate ● May 10, 2026
On the day of the strike — which was also his 7th birthday — the first-grader wore a blue sweater because of the morning chill.
From Los Angeles Times ● May 6, 2026
In that post, a man with brown hair and a half-smile is pictured wearing a navy blue quarter-zip sweater, hands folded behind his back.
From Barron's ● Apr. 26, 2026
I find my work pants, which are down at the bottom of my drawer, my old sweater, and a few other things Mom and I brought from the Ranch.
From "The Wrong Way Home" by Kate O’Shaughnessy
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Knitting is no longer limited to making familiar items such as sweaters, hats, and blankets.
From Science Daily ● Sep. 4, 2026
Many wearing sweaters and thick coats, a reminder of the southern hemisphere winter from where they were coming, walked off the plane into the scorching Nigerian sun.
From Barron's ● Jun. 11, 2026
At Studio City, I overheard two moms in white pants and cashmere sweaters talking about how, based on their Instagram recon, they figured out that so-and-so was sitting next to so-and-so at a benefit dinner.
From Los Angeles Times ● May 25, 2026
It is not uncommon for employees to bring in cardigans or sweaters to wear in office hours because temperatures are maintained at such low levels.
From BBC ● Apr. 9, 2026
To the left are the winter whites: wool coats, mink hats, wool sweaters.
From "Like Vanessa" by Tami Charles
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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.