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

Ineos operates the Forties pipeline which transports about 30% of the UK's North Sea oil.

From BBC ● Sep. 18, 2026

The Saudi East-West Pipeline shutdown triggered a further rush for replacement barrels in the North Sea, S&P said.

From The Wall Street Journal ● Sep. 16, 2026

An estimated 190,000 mines were placed in the North Sea during WWI in hopes that enemy ships would strike them.

From Science Daily ● Sep. 14, 2026

I know that stretch of the North Sea very well because the train from Edinburgh to London goes that way, and I was up and down all year when I was at school.

From "Code Name Verity" by Elizabeth Wein