inflate
Americanverb (used with object)
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to distend; swell or puff out; dilate.
The king cobra inflates its hood.
- Antonyms:
- deflate
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to cause to expand or distend with air or gas.
to inflate a balloon.
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to puff up with pride, satisfaction, etc.
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to elate.
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Economics. to expand (money, prices, an economy, etc.) unduly in amount, value, or size; affect with inflation.
verb (used without object)
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to become inflated.
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to increase, especially suddenly and substantially.
The $10 subscription has inflated to $25.
verb
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to expand or cause to expand by filling with gas or air
she needed to inflate the tyres
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(tr) to cause to increase excessively; puff up; swell
to inflate one's opinion of oneself
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(tr) to cause inflation of (prices, money, etc)
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(tr) to raise in spirits; elate
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(intr) to undergo economic inflation
Synonym Usage
See expand.
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
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inflatesimple
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inflatessimple
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have inflatedperfect
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has inflatedperfect
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am inflatingprogressive
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are inflatingprogressive
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is inflatingprogressive
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have been inflatingperfect progressive
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has been inflatingperfect progressive
Past
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inflatedsimple
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had inflatedperfect
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was inflatingprogressive
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were inflatingprogressive
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had been inflatingperfect progressive
Future
Etymology
Origin of inflate
First recorded in 1500–20; from Latin inflātus, past participle of inflāre “to blow on or into, puff out,” equivalent to in- in- 2 + flā- blow 2 + -tus past participle suffix
Explanation
Using your own breath or an air pump, you can inflate a balloon — or anything else you need to pump air into. When you inflate something you fill it with air (or any other gas) to make it expand. From the Latin verb inflāre, "to blow into," the word inflate appeared in English in the early 16th century. Although we usually think of the word inflate as referring to blowing air or gas into a balloon or a tire, anything that grows larger, from food prices to an egoist's self-image, can be inflated. When an item becomes scarce, its price is likely to be inflated.
Vocabulary lists containing inflate
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.
Law Group — accusing them of inflating medical bills and forcing clients to undergo needless and expensive surgeries to inflate the value of the claim.
From Los Angeles Times • Jun. 26, 2026
Prosecutors allege that Rowan and his co-conspirators concealed the kickbacks by using fake invoices and shell companies to inflate Medicare reimbursements while funneling payments to medical providers.
From The Wall Street Journal • Jun. 25, 2026
"The primary use case for a humanoid robot today is to walk on stage and artificially inflate your share price," he says.
From BBC • May 28, 2026
The researchers say this interaction could partly inflate the estimated genetic influence of IQ, potentially by as much as 15 percentage points.
From Science Daily • May 6, 2026
It would inflate the balloon with a huge burst of power, smoothing out the lumpiness of the universe in the same way a breath of air smooths out the wrinkles of a balloon.
From "Zero: The Biography of a Dangerous Idea" by Charles Seife
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.
