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subsea

American  
[suhb-see, suhb-see] / sʌbˈsi, ˈsʌbˌsi /

adjective

  1. occurring, working, etc., under the sea or ocean.

    a subsea specialist in oil rigs.


Etymology

Origin of subsea

sub- + sea

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.

See Examples For:

Governments are seeking to shield critical infrastructure like oil and gas pipelines, and subsea cables that provide connectivity services.

From The Wall Street Journal Jul. 6, 2026

BofA has a buy rating on Jiangsu Zhongtian Technology on fiber price upside, subsea recovery, and grid growth.

From The Wall Street Journal Jun. 17, 2026

The vast Arctic island is connected to the world by two subsea fibre optic cables to Canada and Iceland, in addition to satellite coverage in the north and east.

From Barron's Mar. 3, 2026

"India is going to have an extraordinary trajectory with AI and we want to be a partner," he said, pledging to build subsea cables as part of an existing $15 billion AI infrastructure investment.

From Barron's Feb. 18, 2026

Down under the waters of the Long Island Sound she was taken in a glass-walled subsea vessel, where in a green and wavering world, quaint and curious sea-things ogled her and wiggled suddenly away.

From "I, Robot" by Isaac Asimov

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