deepen

verb

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

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.
Less than a mile away, the corps is planning to deepen and widen the shipping channel leading into Port Everglades, blasting through the reef line and dredging up sediment that could smother acres of surrounding coral, according to federal scientists. Arkansas Online, 8 Mar. 2026 However, consumer advocates argued the agreement held the line on even higher increases and halted further policy cancellations that have deepened a crisis in the state’s insurance industry. Los Angeles Times, 7 Mar. 2026 His family is suing the company, alleging that the AI companion deepened his despair, says O’Neill. Sherri Gordon, Parents, 7 Mar. 2026 Paugh also noted how Williams has gone beyond traditional logo placement with its business-to-business partnerships and deepened those relationships. Justin Birnbaum, Sportico.com, 7 Mar. 2026 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 13 Mar. 2026.

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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