Pacific Ocean

American  

[puh-sif-ik oh-shuhn] / pəˈsɪf ɪk ˈoʊ ʃən /

Often the Pacific

noun

1. the largest of the world’s five principal oceans, bordered by the American continents, Asia, and Australia, with its deepest section in the Mariana Trench: divided by the equator into the North Pacific Ocean and the South Pacific Ocean. 62,455,900 square miles (161,760,000 square kilometers).

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Pacific Ocean British  

noun

1. the world's largest and deepest ocean, lying between Asia and Australia and North and South America: almost landlocked in the north, linked with the Arctic Ocean only by the Bering Strait, and extending to Antarctica in the south; has exceptionally deep trenches, and a large number of volcanic and coral islands. Area: about 165 760 000 sq km (64 000 000 sq miles). Average depth: 4215 m (14 050 ft). Greatest depth: Challenger Deep (in the Marianas Trench), 11 033 m (37 073 ft). Greatest width: (between Panama and Mindanao, Philippines) 17 066 km (10 600 miles)

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Pacific Ocean Cultural  

1. The largest ocean in the world, separating Asia and Australia on the west from North America and South America on the east.

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Etymology

Origin of Pacific Ocean

First recorded in 1560–70

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Example Sentences

See Examples For:

Pacific Ocean

They are slow-moving, mostly flat, waves of warm water that can stretch thousands of miles across the Pacific Ocean.

From Salon ● Oct. 22, 2026

Of the three main Lower Basin states, two—Arizona and Nevada—have no sea-front, while the third, California, borders the largest body of water on the planet, the Pacific Ocean.

From The Wall Street Journal ● Oct. 20, 2026

A search for the wreckage of Amelia Earhart's plane on a remote island in the Pacific Ocean has resumed after severe weather caused researchers to stop for several days.

From BBC ● Oct. 18, 2026

After completing its stay, the spacecraft will carry time-sensitive research materials and other cargo back to Earth, ending its journey with a splashdown in the Pacific Ocean off the California coast.

From Science Daily ● Oct. 16, 2026

The time hovering over the ceiling of my bed tells me that it’s four a.m. in the middle of the Pacific Ocean.

From "Warcross" by Marie Lu

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