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.
The meeting comes as Tokyo seeks to rein in a deepening diplomatic and trade rift with China while strengthening ties with allies to counter Beijing’s attempts to isolate Japan. Miranda Jeyaretnam, Time, 13 Jan. 2026 Protests erupted in recent weeks over Iran’s deepening economic crisis, with demonstrators increasingly calling for regime change. Landon Mion, FOXNews.com, 13 Jan. 2026 Restorative justice programs bring together survivors and offenders — via meetings or letters or through community panels — to try to deepen understanding, promote healing and discuss how best to make amends for a wide range of harms. Megan O’Matz, ProPublica, 13 Jan. 2026 The other shoe drops that deepens the love, but that also tests some of their personal limits. Emlyn Travis, Entertainment Weekly, 13 Jan. 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 14 Jan. 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

More from Merriam-Webster on deepen

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