deepen
Americanverb (used with or without object)
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deepens,
present (3rd person singular)
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deepened,
past participle, past
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deepening
present participle
verb
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
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deepensimple
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deepenssimple
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have deepenedperfect
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has deepenedperfect
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am deepeningprogressive
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are deepeningprogressive
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is deepeningprogressive
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have been deepeningperfect progressive
-
has been deepeningperfect progressive
Past
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deepenedsimple
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had deepenedperfect
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was deepeningprogressive
-
were deepeningprogressive
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had been deepeningperfect progressive
Future
Etymology
Origin of deepen
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:
Understanding how maternal effects move across generations could eventually deepen scientists' knowledge of human health and contribute to future approaches in precision medicine.
From Science Daily ● Aug. 19, 2026
This could include issues like Canada's efforts to deepen economic ties with European countries or China.
From Barron's ● Aug. 18, 2026
The founders declined to discuss the deal, while BuzzBallz owner Sazerac said it would allow it "to deepen its presence in the UK".
From BBC ● Aug. 17, 2026
Miso, honey and red-pepper flakes deepen the mixture; pasta water turns it glossy enough to tuck itself into the tubes and folds of a sturdy short pasta.
From Salon ● Aug. 16, 2026
As the cinder town began to deepen, cooling to mere scarlet, Ralph began to discern the familiar road again — to reassure himself that they were indeed on an ordinary highway with other cars.
From "Typical American" by Gish Jen
"This new understanding reshapes how we think about the structure of matter and deepens our knowledge of the most fundamental element that is responsible for the universe in its current form."
From Science Daily ● Aug. 16, 2026
The outage deepens a pre-existing economic headache for Magyar, who is under pressure to reduce a fiscal deficit and boost growth after ousting long-serving premier Viktor Orbán in April.
From The Wall Street Journal ● Aug. 3, 2026
The soy sauce deepens it; the bacon crackles; the avocado cools everything down.
From Salon ● Jul. 28, 2026
Anguiano said faculty would lead the work “while the board deepens its own understanding of the broader questions at hand.”
From Los Angeles Times ● Jul. 14, 2026
Baba’s voice deepens as he utters the title that means “dear older brother of my father.”
From "Amina's Voice" by Hena Khan
A global bond selloff deepened and oil prices held above $91 a barrel in early European trade.
From The Wall Street Journal ● Aug. 18, 2026
Taylor said the latest development had deepened her grief and her lack of faith in the authorities.
From BBC ● Aug. 13, 2026
“They deepened my respect for all wildlife, not just bald eagles, and reminded me that we, as humans, must do more to protect wildlife habitats around the world,” South Pasadena’s Annette Gray said.
From Los Angeles Times ● Aug. 11, 2026
North Korea has deepened its ties with Russia since the Kremlin commanded the full-scale invasion of Ukraine in 2022.
From Barron's ● Aug. 10, 2026
Opal began to despair and my guilt deepened.
From "Rump: The (Fairly) True Story of Rumpelstilskin" by Liesl Shurtliff
She frequently puts pictures within pictures, deepening and doubling the story being told and making it deliciously clear that what we are seeing is constructed, not found.
From Los Angeles Times ● Aug. 25, 2026
It also dries out soils, deepening drought where El Nino brings drought.
From Barron's ● Aug. 20, 2026
Mortgage rates rose slightly on Tuesday due to a deepening late-summer bond selloff.
From MarketWatch ● Aug. 18, 2026
“Our new Truth API product is already generating revenue,” McGurn says on the company’s 2Q earnings release, in which it reported deepening losses.
From The Wall Street Journal ● Aug. 11, 2026
Then six weeks passed—the six weeks between Columbus Day and that 911 call—and I still had not caught the moodiness that was deepening in my friend.
From "Silent To The Bone" by E.L. Konigsburg
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.
