North Sea

American  

noun

1. an arm of the Atlantic Ocean between Great Britain and the European mainland. About 201,000 square miles (520,600 square kilometers); greatest depth, 1,998 feet (610 meters).

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North Sea British  

noun

1. Former name: German Ocean.  an arm of the Atlantic between Great Britain and the N European mainland. Area: about 569 800 sq km (220 000 sq miles)

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North Sea Cultural  

1. Arm of the Atlantic Ocean northwest of central Europe.

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Discover More

Oil was discovered under the sea floor in 1970.

Etymology

Origin of North Sea

Firsr recorded before 1000

Example Sentences

See Examples For:

North Sea

The company sells chemicals used in energy production called completion fluids, mainly to deepwater producers in the North Sea and off the coast of Brazil and the U.S.

From MarketWatch ● Sep. 19, 2026

Last year, for the first time since the North Sea began producing oil and gas, not a single exploration well was drilled.

From BBC ● Sep. 14, 2026

During World War I, control of the North Sea was strategically vital to both Germany and Britain.

From Science Daily ● Sep. 14, 2026

North Sea projects or international expansion, the analyst writes after speaking to Chairman Yaniv Friedman at the Barclays CEO Energy-Power Conference.

From The Wall Street Journal ● Sep. 9, 2026

They're old enough to bicycle with their friends to Cuxhaven on the North Sea where they camp overnight and dive for mussels that they cook on the beach.

From "The Boy Who Dared" by Susan Campbell Bartoletti