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deepen

verb

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

transitive verb

: to make deep or deeper

intransitive verb

: to become deeper or more profound

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.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Anderson breezes through monumental shifts from there — Perfidia’s deepening romantic relationship with Pat, her subsequent pregnancy and postpartum depression, the beginnings of a psychosexual dynamic with Lockjaw, the downfall of the French 75, and the splintering of the lives associated with it. Angelica Jade Bastién, Vulture, 24 Nov. 2025 These are no doubt significant steps in deepening the two countries’ relationship, underlining a shift in US priorities in the Middle East from conflict to commerce. Amena Bakr, semafor.com, 24 Nov. 2025 This occurs as Elphaba's conflict with the Wizard of Oz (Jeff Goldblum) and his supporters deepens in the film's second installment. Tommy McArdle, PEOPLE, 24 Nov. 2025 Food stamp cuts deepen hardship The 82-year-old said her benefits got slashed from $26 to $16. Marvin Hurst, CBS News, 22 Nov. 2025 See All Example Sentences for deepen

Word History

First Known Use

1600, in the meaning defined at transitive sense

Time Traveler
The first known use of deepen was in 1600

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Cite this Entry

“Deepen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deepen. Accessed 2 Dec. 2025.

Kids Definition

deepen

verb
deep·​en ˈdē-pən How to pronounce deepen (audio)
deepened; deepening ˈdēp-(ə-)niŋ How to pronounce deepen (audio)
: to make or become deep or deeper

More from Merriam-Webster on deepen

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