chill
Americannoun
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coldness, especially a moderate but uncomfortably penetrating coldness.
the chill of evening.
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a sensation of cold, usually with shivering.
She felt a slight chill from the open window.
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a feeling of sudden fear, anxiety, or alarm.
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sudden coldness of the body, as during the cold stage of an ague.
fevers and chills.
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a depressing influence or sensation.
His presence cast a chill over everyone.
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lack of warmth of feeling; unfriendliness; coolness.
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Foundry. an inserted object or a surface in a mold capable of absorbing large amounts of heat, used to harden the surface of a casting or to increase its rate of solidification at a specific point.
adjective
verb (used without object)
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to become cold.
The earth chills when the sun sets.
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to be seized with a chill; shiver with cold or fear.
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Foundry. (of a casting) to become hard on the surface by contact with a chill or chills.
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Slang. to calm down; relax (often followed byout ).
verb (used with object)
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to affect with cold; make chilly.
The rain has chilled me to the bone.
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to make cool.
Chill the wine before serving.
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to depress; discourage; deter.
The news chilled his hopes.
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Foundry. to harden the surface of (a casting) by casting it in a mold having a chill or chills.
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Slang. to kill; murder.
idioms
noun
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a moderate coldness
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a sensation of coldness resulting from a cold or damp environment, or from a sudden emotional reaction
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a feverish cold
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a check on enthusiasm or joy
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a metal plate placed in a sand mould to accelerate cooling and control local grain growth
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another name for bloom 1
adjective
verb
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to make or become cold
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(tr) to cool or freeze (food, drinks, etc)
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(tr)
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to depress (enthusiasm, etc)
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to discourage
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(tr) to cool (a casting or metal object) rapidly in order to prevent the formation of large grains in the metal
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slang (intr) to relax; calm oneself
Synonym Usage
See cold.
Other Word Forms
Derived Forms
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chillnessnoun
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prechillverb (used with object)
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overchillverb
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well-chilledadjective
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unchilledadjective
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chillinglyadverb
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overchilladjective
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chillingadjective
Conjugated Forms
Present
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has chilledperfect 3rd person singular
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have chilledperfect
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has been chillingperfect progressive 3rd person singular
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have been chillingperfect progressive
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am chillingprogressive 1st person singular
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are chillingprogressive
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chillssingular 3rd person
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chillingparticiple
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is chillingprogressive 3rd person singular
Past
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had chilledperfect
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were chillingprogressive plural
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had been chillingperfect progressive
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chilledsimple
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chilledparticiple
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was chillingprogressive singular
Future
Etymology
Origin of chill
First recorded before 900; Middle English chile, Old English cele, ci(e)le “coolness”; cf. cool, cold; akin to Latin gelāre “to freeze,” gelum “frost, cold,” glaciēs “ice” ( see gelato, gelid, glacier)
Explanation
A sharp burst of cold air or icy temperatures is a chill. The chill of a January day in New England might make you dream of moving to New Mexico. You'll feel a chill when someone opens a window in the winter, or notice a chill in the air on a cool day in September. Another kind of chill makes you shiver, but it's caused by illness and fever rather than a cold breeze: "Symptoms of the flu include chills and headache." A cold attitude is also a chill, as when a chill in the room makes you realize your friends are angry at each other.
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.
"Just, you know, chill, relax," Infantino told a news conference at the Azteca Stadium on the eve of Thursday's opening match between Mexico and South Africa.
From BBC • Jun. 10, 2026
Pratt’s loudest fans loathe modern-day L.A., and that should chill all other Angelenos.
From Los Angeles Times • Jun. 10, 2026
Ameriprise’s chief market strategist, Anthony Saglimbene, is chill about all the talk of who’s going to get squeezed.
From Barron's • Jun. 9, 2026
My suggestion — throw on your best headphones and find a shady tree to lean back against and chill out.
From Salon • Jun. 6, 2026
I drop it like it’s fire, watch it flutter to the floor while I count and breathe, count and breathe, forcing my hammering heart to chill out.
From "Red Flags and Butterflies" by Sheryl Azzam
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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.