un·der·sea
ˌən-dər-ˈsē 
1
: being or carried on under the sea or under the surface of the sea
undersea oil deposits
undersea fighting
2
: designed for use under the surface of the sea
an undersea fleet
Examples of undersea in a Sentence
Adjective
They are conducting undersea research.
Recent Examples on the Web
Nicholas D. Kristof, Mercury News, 24 Apr. 2025
Another Bell Labs group is focused on monitoring the world’s vast network of undersea fiber-optic cables.
—IEEE Spectrum, 18 Apr. 2025
The article purported to reveal new technology that could cut the thickest, most armored undersea cables at up to 4,000 meters—twice the operational depth of most existing undersea communications infrastructure.
—Jill Goldenziel, Forbes.com, 1 Apr. 2025
Image Twist by Colum McCann McCann’s latest novel begins with a fairly straightforward narrative: An Irish writer down on his luck is assigned to write about the undersea cables that carry the world’s data and the repair teams that patrol the oceans, fixing ruptures.
—New York Times, 27 Mar. 2025
See All Example Sentences for undersea
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Adjective
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While all that’s going on, the People’s Liberation Army might cut multiple undersea internet cables leading to Taiwan.
—Nicholas D. Kristof, Mercury News, 24 Apr. 2025
Another Bell Labs group is focused on monitoring the world’s vast network of undersea fiber-optic cables.
—IEEE Spectrum, 18 Apr. 2025
The article purported to reveal new technology that could cut the thickest, most armored undersea cables at up to 4,000 meters—twice the operational depth of most existing undersea communications infrastructure.
—Jill Goldenziel, Forbes.com, 1 Apr. 2025
Image Twist by Colum McCann McCann’s latest novel begins with a fairly straightforward narrative: An Irish writer down on his luck is assigned to write about the undersea cables that carry the world’s data and the repair teams that patrol the oceans, fixing ruptures.
—New York Times, 27 Mar. 2025
See All Example Sentences for undersea
Cite this Entry
“Undersea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undersea. Accessed 4 May. 2025.
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