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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.

Healey warned Russia of “serious consequences” for future damage, amid broader Western concerns about Russian and Chinese undersea activity.

From The Wall Street Journal • Apr. 9, 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

Last year, the Royal Navy unveiled plans for a network of drones, warships and surveillance aircraft aimed at protecting vital undersea infrastructure.

From BBC • Apr. 8, 2026

Will he bow to US pressure to nix a project to link China and Chile across the Pacific via an undersea fiber optic cable?

From Barron's • Mar. 12, 2026

The road made for easier walking, so Roz followed it through the undersea landscape.

From "The Wild Robot Protects" by Peter Brown