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.
These dynamics deepened influencer-follower relations in ways that brands couldn’t easily replicate. Kelley Cours Anderson, The Conversation, 17 Nov. 2025 The company is deepening its on-the-ground presence, with 25 years in the market, co-design studios in China, and expansion in regional hubs such as Wuhan. Spriha Srivastava,charlotte Reed, CNBC, 16 Nov. 2025 Moore returns as Cami Miller, whose storyline deepens as the stakes expand across the oil fields. Maggie Clancy, Footwear News, 15 Nov. 2025 As for Selena’s enduring legacy, Pérez says the passage of time has only deepened the meaning of their story. Lizzie Hyman, PEOPLE, 15 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 25 Nov. 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

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