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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

Antelope Reef is a small, teardrop-shaped island in the north-western corner of the South China Sea and, until recently, almost entirely underwater.

From BBC • Jun. 3, 2026

Natalie tumbled along the rough rooftop, trying to grab hold of something, anything, and then suddenly the solid ground underneath her was gone and she was underwater again.

From "Two Degrees" by Alan Gratz




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