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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.

US palaeontologist Stephen Godfrey compared the "truly unique discovery" to past major underwater finds, such as when scientists first identified hydrothermal vents teeming with life on the ocean floor in 1977.

From Barron's • Jun. 10, 2026

Kongsberg manufactures missiles, air defense systems and anti-drone solutions, among other things, and also produces technology for emerging defense markets such as underwater operations and space.

From The Wall Street Journal • Jun. 10, 2026

The helmets survived in exceptional condition thanks to a combination of sediment and mineral deposits that formed around them underwater.

From Science Daily • Jun. 8, 2026

South Yorkshire Police said his family were "living every parent's worst nightmare", with searches including an underwater team and Mountain Rescue volunteers.

From BBC • Jun. 1, 2026

Nuclear-powered subs could have hidden deep underwater for long periods of time—but the navy was still redesigning its nuclear subs.

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




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