inch
1 Americannoun
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a unit of length, 1/12 (0.0833) foot, equivalent to 2.54 centimeters. in.
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a very small amount of anything; narrow margin.
to win by an inch;
to avert disaster by an inch.
verb (used with or without object)
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inches,
present (3rd person singular)
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inched,
past participle, past
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inching
present participle
idioms
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every inch, in every respect; completely.
That horse is every inch a thoroughbred.
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within an inch of, nearly; close to.
He came within an inch of getting killed in the crash.
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by inches,
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narrowly; by a narrow margin.
escaped by inches.
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Also inch by inch. by small degrees or stages; gradually.
The miners worked their way through the narrow shaft inch by inch.
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noun
noun
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a unit of length equal to one twelfth of a foot or 0.0254 metre
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meteorol
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an amount of precipitation that would cover a surface with water one inch deep
five inches of rain fell in January
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a unit of pressure equal to a mercury column one inch high in a barometer
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a very small distance, degree, or amount
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in every way; completely
he was every inch an aristocrat
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gradually; little by little
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very close to
verb
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to move or be moved very slowly or in very small steps
the car inched forward
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to defeat (someone) by a very small margin
noun
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A unit of length in the US Customary System equal to 1/12 of a foot (2.54 centimeters).
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See Table at measurement
Other Word Forms
Inflected Forms
Participles
Conjugated Forms
Present
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inchsimple
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inchessimple
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have inchedperfect
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has inchedperfect
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am inchingprogressive
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are inchingprogressive
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is inchingprogressive
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have been inchingperfect progressive
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has been inchingperfect progressive
Past
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inchedsimple
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had inchedperfect
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was inchingprogressive
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were inchingprogressive
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had been inchingperfect progressive
Future
Etymology
Origin of inch1
First recorded before 1000; Middle English inch(e), unch(e), enche, Old English ynce, from Latin uncia “twelfth part, inch, ounce”; see origin at ounce 1
Origin of inch2
First recorded in 1400–50; late Middle English, from Scots Gaelic innse, genitive of innis “island,” Old Irish inis, cognate with Welsh ynys, Breton enez
Explanation
An inch is a small unit of measurement. Twelve inches makes one foot. You might get an inch of your hair cut off, or hem your jeans so they're an inch shorter. Some countries use centimeters and meters as units of measurement, but if you measure in inches, you can order a twelve inch pizza or print out three by five inch photos. When inch is used as a verb, it means "to creep slowly forward." The Old English version was ynce, from the Latin uncia, "a twelfth part."
Vocabulary lists containing inch
Measurement and Data, List 2
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Measurement and Data
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STAAR Grade 5 Mathematics: Measurement
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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:
Pushing through the glass double doors, I found every inch of the restaurant pulsating with some kind of sensory experience.
From Slate ● Aug. 24, 2026
About an inch long, they’re hard to miss — and are known for careening into unsuspecting bystanders.
From Los Angeles Times ● Aug. 18, 2026
Others argued that the shirt is too cheap-looking to be something Chao, who is every inch the wealthy socialite, would wear.
From Salon ● Aug. 3, 2026
The snails, which measure no bigger than a third of an inch or 8mm in size, are important as they eat vegetation and enrich the soil.
From BBC ● Jul. 28, 2026
She’d changed since my Lincoln simulation and looked every inch the commander in chief in her fitted black uniform.
From "Glitch" by Laura Martin
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Proximity to Lake Michigan creates long, frigid winters with an average of 75 inches of snow.
From MarketWatch ● Aug. 25, 2026
The Rhine fell to just 9½ inches at the critical shipping bottleneck of Kaub, Germany, this summer, severely restricting inland freight transport.
From The Wall Street Journal ● Aug. 18, 2026
Forecasters warned of life-threatening flooding and mudslides, with as much as 25 inches of rain possible at higher elevations.
From Los Angeles Times ● Aug. 16, 2026
The bust is about 22 inches wide, 18 inches high and 10 inches deep, according to the couple.
From Los Angeles Times ● Aug. 14, 2026
Five more inches drenched the town that night.
From "The Seven Wonders of Sassafras Springs" by Betty G. Birney
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U.S. natural gas futures inched up with a few more weeks of hot weather-driven demand expected to support power-sector use.
From The Wall Street Journal ● Aug. 25, 2026
Economists expect 3.5% annualized growth for the latest quarter, after GDP inched down 0.1% over the first three months of 2026.
From The Wall Street Journal ● Aug. 25, 2026
Revenue inched up 1% to $6.91 billion compared to the year-ago period, when Paramount was controlled by media heiress Shari Redstone.
From Los Angeles Times ● Aug. 4, 2026
Deaths were more than double that at 1.6 million, while the fertility rate edged down 0.01 percentage points to 1.14 although marriages inched higher, the Health, Labour and Welfare Ministry numbers showed.
From Barron's ● Jul. 28, 2026
The guy at the wheel checked his watch, then he gave a nod as the car inched nearer to where I was standing.
From "Firegirl" by Tony Abbott
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With them inching closer to the city, Dezhyna and her parents are again thinking about whether they should flee to refuge, far from her beloved Izyum.
From Barron's ● Aug. 25, 2026
And for maybe the first time in weeks, the Dodgers appear to be inching back to their champion ways.
From Los Angeles Times ● Aug. 22, 2026
Instead of championing competition and openness, the U.S. is inching toward tech protectionism.
From The Wall Street Journal ● Jul. 30, 2026
The latest flare-ups in hostilities are boosting crude futures prices, which were inching toward $80 a barrel Tuesday.
From MarketWatch ● Jul. 14, 2026
The drive back home is slow, as if we are inching our way through muddy dirt roads.
From "American Street" by Ibi Zoboi
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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.