deepen
Americanverb (used with or without object)
-
deepens,
present (3rd person singular)
-
deepened,
past participle, past
-
deepening
present participle
verb
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
-
deepensimple
-
deepenssimple
-
have deepenedperfect
-
has deepenedperfect
-
am deepeningprogressive
-
are deepeningprogressive
-
is deepeningprogressive
-
have been deepeningperfect progressive
-
has been deepeningperfect progressive
Past
-
deepenedsimple
-
had deepenedperfect
-
was deepeningprogressive
-
were deepeningprogressive
-
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:
He’s so instantly believable that the movie doesn’t need its traumatic flashbacks to their childhood that distract more than deepen.
From Los Angeles Times ● Oct. 7, 2026
The findings, published in Nature Communications, could deepen scientists' understanding of these reactions and eventually contribute to improved flow batteries, fuel cells and catalysts.
From Science Daily ● Oct. 6, 2026
"Ukraine and Germany have built a strong strategic partnership, and we are determined to deepen it further," he wrote on X.
From Barron's ● Oct. 4, 2026
It helps deepen understanding of how AI could go wrong, while at the same time raising public awareness of the technology’s risks.
From The Wall Street Journal ● Oct. 2, 2026
The shadows around us deepen as we climb up the stone stairs, toward the crest of the hill.
From "Red Queen" by Victoria Aveyard
The context deepens after we ascend to an upper passageway.
From The Wall Street Journal ● Sep. 26, 2026
But he will call on the EU to design its "Made in Europe" programme in a way that deepens ties with the UK "rather than erecting new barriers", Treasury sources told the BBC.
From BBC ● Sep. 17, 2026
Arriving in Bishkek on Sunday, Xi hailed what he described as a "golden period" in relations with Central Asian Kyrgyzstan, as China deepens its influence in the historically Russia-dominated region.
From Barron's ● Aug. 31, 2026
Areas below 2,000 feet are expected to benefit from more moisture and humidity as the marine layer deepens into next week, but “above the marine influences, it’ll still be quite warm and dry,” he said.
From Los Angeles Times ● Aug. 30, 2026
Fleetwood’s face deepens from pink to plum while the ambassador’s brow knits with confusion.
From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin
Those doubts deepened when Pillinger placed a model of Beagle 2 on the lawn.
From BBC ● Oct. 8, 2026
The discovery of pottery decorated in Mississippian styles only deepened the mystery.
From Science Daily ● Oct. 6, 2026
As the memory crunch deepened, its rank rose to sixth in last year’s fourth quarter, then third over the first half of this year.
From MarketWatch ● Sep. 27, 2026
But a contest between the two organizations for clout and resources has deepened in recent months after leadership changes in both agencies, according to people familiar with the matter.
From The Wall Street Journal ● Sep. 2, 2026
At the horizon, the color deepened to a thin rim of blue.
From "Caterpillar Summer" by Gillian McDunn
South Korea said Thursday it will recall its ambassador to Ukraine in response to a deepening diplomatic row over the transfer of North Korean prisoners of war to Seoul.
From Barron's ● Oct. 8, 2026
"These investigations exemplify how Artemis and Moon Base are expanding the frontier of lunar exploration, advancing innovative technologies, deepening our understanding of the Moon's environment, and paving the way for future astronaut missions."
From Science Daily ● Oct. 8, 2026
A deepening bond rout has driven yields to historic heights in recent weeks, powered by rising prices and a fast-growing economy that shows few signs of cooling off.
From The Wall Street Journal ● Sep. 28, 2026
Arab mediators said Iranian diplomats have presented a number of proposals to end the war and acknowledged the deepening economic crisis in their country.
From The Wall Street Journal ● Sep. 26, 2026
I saw the worry deepening on Barack's face, caught as he was in the crosscurrents of his opposing obligations.
From "Becoming" by Michelle Obama
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.
