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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.

The Navy has previously trained External link bottlenose dolphins and sea lions, chiefly for reconnaissance and recovering objects like undersea mines.

From Barron's • May 14, 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

More than 90% of the UK's day-to-day internet traffic travels via these undersea cables.

From BBC • Apr. 9, 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

I was exhausted—fighting undersea monsters had used up what little reserves I had left.

From "City of the Plague God" by Sarwat Chadda




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