deep·​en | \ ˈdē-pən How to pronounce deepen (audio) \
deepened; deepening\ ˈdē-​pə-​niŋ How to pronounce deepening (audio) , ˈdēp-​niŋ \

Definition of deepen

transitive verb

: to make deep or deeper

intransitive verb

: to become deeper or more profound

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Examples of deepen in a Sentence

They deepened the river so that larger boats could sail through. Age had deepened the lines in his face. The water deepens toward the center of the river. Her powerful words deepened our commitment to the cause. The vacation together deepened their relationship with each other. The mystery was deepened by her silence. This class will deepen your understanding of economics. Living in the country's capital had deepened her knowledge of politics.
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Recent Examples on the Web Scientists’ understanding of the physical processes in the ocean is slowly deepening. Richard Hodson, Scientific American, "Physical oceanography," 13 Nov. 2019 But the attack on police in Michoacán suggests that violence — particularly between criminal groups and the government — is deepening., "14 Mexican police officers killed in ambush as president vows to combat increasing violence - The Boston Globe," 15 Oct. 2019 The fight over impeachment is deepening the rift between career diplomats and Trump’s appointed ambassadors. NBC News, "Trump's decision on Syria has already turned into a foreign policy disaster," 14 Oct. 2019 The tariff battle is deepening the global economic slowdown, causing manufacturing activity to contract and disrupting complex supply chains. Matt Egan, CNN, "'Revered industrial CEO God:' GE's Larry Culp faces high expectations, and a tough turnaround," 10 Oct. 2019 Pitching help is a must; so is deepening the lineup. Jon Tayler,, "Can the Disastrous, Expensive Phillies Rebound in 2020?," 24 Sep. 2019 At a company still trying to establish itself, in an industry beset by regulatory uncertainty, Select leaders are deepening their ties to ViSalus – a company with a history nearly as tortured as its own. Mike Rogoway, oregonlive, "Controversial Portland marijuana firm hires president with his own baggage," 21 Sep. 2019 On the whole, then, the Gantz-Lapid partnership seems to be holding—and Netanyahu’s panic seems to be deepening. Bernard Avishai, The New Yorker, "The Israeli Election Is Next Week, and Unprecedented Alliances Are Moving Against Netanyahu," 10 Sep. 2019 Across the city and region, the mourning is deepening as the funerals get underway here and across the border in Ciudad Juarez and beyond. Dallas News, "Trump supporter reportedly with knife, gun briefly detained in El Paso," 8 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deepen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of deepen

1598, in the meaning defined at transitive sense

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Time Traveler for deepen

Time Traveler

The first known use of deepen was in 1598

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Statistics for deepen

Last Updated

18 Nov 2019

Cite this Entry

“Deepen.” The Dictionary, Merriam-Webster Inc., Accessed 22 November 2019.

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More Definitions for deepen


How to pronounce deepen (audio)

English Language Learners Definition of deepen

: to become or to cause (something) to become deep or deeper
: to become or to cause (something, such as a feeling or emotion) to become stronger or more powerful
: to make (your knowledge, understanding, etc.) fuller or more complete


deep·​en | \ ˈdē-pən How to pronounce deepen (audio) \
deepened; deepening

Kids Definition of deepen

: to make or become deep or deeper I deepened the hole.

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More from Merriam-Webster on deepen

Thesaurus: All synonyms and antonyms for deepen

Rhyming Dictionary: Words that rhyme with deepen

Spanish Central: Translation of deepen

Nglish: Translation of deepen for Spanish Speakers

Britannica English: Translation of deepen for Arabic Speakers

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