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Definitions

underwater

[uhn-der-waw-ter, -wot-er] / ˈʌn dərˈwɔ tər, -ˈwɒt ər /
ADJECTIVE
under the water's surface
Synonyms


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.

We’re sitting on opposite ends of an underwater “sea-saw.”

From Los Angeles Times • Jun. 1, 2026

South Yorkshire Police said emergency services, an underwater search team and a mountain rescue team had so far been involved in the search of the river, the riverbank and nearby open land.

From BBC • Jun. 1, 2026

The US, UK and Australia say they will develop underwater drone technology to protect undersea cables and boost defence, under their military alliance known as Aukus.

From BBC • May 30, 2026

Researchers explained that strong seasonal weather patterns greatly limit opportunities for underwater surveys.

From Science Daily • May 27, 2026

East Berliners responded creatively—some took a newfound interest in scuba diving and mapped out underwater routes to freedom.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin




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