blanch
1 Americanverb (used with object)
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to whiten by removing color; bleach.
Workers were blanching linen in the sun.
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Cooking.
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to scald briefly and then drain, as peaches or almonds to facilitate removal of skins, or as rice or macaroni to separate the grains or strands.
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to scald or parboil (meat or vegetables) so as to whiten, remove the odor, prepare for cooking by other means, etc.
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Horticulture. (of the stems or leaves of plants, as celery or leeks) to whiten or prevent from becoming green by excluding light.
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Metallurgy.
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to give a white luster to (metals), as by means of acids.
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to coat (sheet metal) with tin.
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to make pale, as with sickness or fear.
The long illness had blanched her cheeks of their natural color.
verb (used without object)
verb (used with object)
verb
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(also intr) to remove colour from, or (of colour) to be removed; whiten; fade
the sun blanched the carpet
over the years the painting blanched
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(usually intr) to become or cause to become pale, as with sickness or fear
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to plunge tomatoes, nuts, etc, into boiling water to loosen the skin
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to plunge (meat, green vegetables, etc) in boiling water or bring to the boil in water in order to whiten, preserve the natural colour, or reduce or remove a bitter or salty taste
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to cause (celery, chicory, etc) to grow free of chlorophyll by the exclusion of sunlight
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metallurgy to whiten (a metal), usually by treating it with an acid or by coating it with tin
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to attempt to conceal something
Related Words
See whiten.
Other Word Forms
- blancher noun
Etymology
Origin of blanch1
First recorded in 1300–50; Middle English bla(u)nchen, from Anglo-French, Middle French blanchir “to whiten,” derivative of blanc, blanche “white”; see blank
Origin of blanch2
First recorded in 1565–75; variant of blench 1
Explanation
To blanch is to turn pale, usually as the result of a physical or psychological shock. 19th-century literary heroines were frequently blanching — before they fainted, that is. Blanch has also taken on the more general meaning of "to cause shock" in general. A government can blanch at following through a particular reform, without the implication that an entire cabinet actually turned white. You can blanch an inanimate object, too, when you deprive it of its natural color. White toilet paper has been blanched by using bleach, for example, though environmentalists blanch at the thought.
Vocabulary lists containing blanch
The Vocabulary.com Top 1000
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The Tragedy of Macbeth
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100 SAT Words Beginning with "B"
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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.
They may blanch at a $200 tasting menu and not be able to enjoy their food.
From The Wall Street Journal • Apr. 16, 2026
“We didn’t blanch at the cost to come to The Mather.”
From Barron's • Oct. 26, 2025
We know them so well, which is why when the series depicts the original trio acting inexplicably or out of character, viewers blanch.
From Salon • Aug. 29, 2023
But once you’ve plunked down hundreds or thousands of dollars for seats, maybe you don’t blanch at the idea of paying more to park than to fill your gas tank.
From Los Angeles Times • Jul. 28, 2023
But even as the banker sniveled something that made Marlena blanch and stare in horror at her bowl of clam chowder, posters were being slapped up on every surface in town.
From "Water for Elephants" by Sara Gruen
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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.