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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.

The cave, an underwater system which extends for hundreds of meters through multiple chambers and internal passages, begins with a first large, bright cavern with a sandy bottom.

From Barron's • May 21, 2026

Triggered by earthquakes, underwater landslides or volcanic eruptions, they spread rapidly over long distances before releasing their energy near the coast in the form of sudden submersion and extremely powerful currents.

From Science Daily • May 21, 2026

These latest interceptions come amid increased Russian aggression in the region, the MoD added, pointing to recent submarine activity over critical underwater British infrastructure in the North Sea.

From BBC • May 20, 2026

Researchers say the discovery could improve earthquake models used to estimate seismic hazards along underwater faults around the world, including regions closer to major coastal populations.

From Science Daily • May 16, 2026

Most challenging of all was the fact that there was not one person who had ever been involved in an underwater excavation in South Korea.

From "Shipwrecked!" by Martin W. Sandler




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