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.
Renewable energy The global oil crisis has only deepened the desire by many countries to transition to clean energy, which could be a boon for the sector. Ivana Kottasová, CNN Money, 2 May 2026 Compared to other regions in the country, Dubrovnik could be harder hit if the fuel crisis deepens because of its location at the southern tip of Croatia’s Adriatic Sea coastline. Darko Bandic, Fortune, 2 May 2026 Her appreciation for storytelling only deepened over time, shaped by life experiences that included caring for her grandparents during the isolation of the COVID-19 pandemic and later starting her own small jewelry business. Tereza Shkurtaj, PEOPLE, 2 May 2026 Others are deepening their investments, with executives talking about the responsibility of ensuring the ecosystem is not hollowed out in this downturn. Lily Templeton, Footwear News, 1 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

Browse Nearby Words

Cite this Entry

“Deepen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deepen. Accessed 4 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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