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Definitions

undersea

[uhn-der-see] / ˈʌn dərˌsi /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A significant share of global web traffic passes through the Strait via undersea cables, largely servicing countries in the Gulf and South Asia.

From Barron's • Apr. 12, 2026

Britain’s military exposed a month-long, secret Russian submarine operation targeting U.K. undersea infrastructure.

From The Wall Street Journal • Apr. 9, 2026

The UK is dependent on its undersea cables and pipelines for its data and energy.

From BBC • Apr. 9, 2026

"Sea mines and other explosive devices can cause acoustic disturbance impacting sea mammals and other animals, and blast damage to natural undersea structures such as reefs," Weir said.

From Barron's • Mar. 17, 2026

A dim, undersea light filtered through the slits of the cellar windows.

From "The Bell Jar" by Sylvia Plath




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