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 story attracted her first, a heartwarming narrative about an aquarium cleaner (Field) who looks after a giant Pacific octopus (voiced by Alfred Molina) and the young drifter (Lewis Pullman) who deepens both their lives while doing his own soul-searching. Brian Truitt, USA Today, 9 May 2026 Just Women’s Sports Named WNBA Emerging Media Partner Just Women’s Sports has been named an Emerging Media Partner of the WNBA ahead of the 2026 season, deepening its investment in women’s basketball. Sportico Staff, Sportico.com, 8 May 2026 Porter was traded for Cam Johnson last summer, a move that enabled the Nuggets to both shed salary and deepen their bench in subsequent trades. Bennett Durando, Denver Post, 8 May 2026 London — The hard-right Reform UK party led by Nigel Farage has surged in England’s local elections while the governing Labour Party has slumped, deepening doubts about Prime Minister Keir Starmer’s ability to govern and further splintering Britain’s traditional two-party political system. Christian Edwards, CNN Money, 8 May 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 May. 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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