Caspian Sea

American  

noun

1. a salt lake between southeastern Europe and Asia: the largest inland body of water in the world. About 169,000 square miles (438,000 square kilometers); 85 feet (26 meters) below sea level.

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Caspian Sea British  

/ ˈkæspɪən /

noun

1. a salt lake between SE Europe and Asia: the largest inland sea in the world; fed mainly by the River Volga. Area: 394 299 sq km (152 239 sq miles)

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Caspian Sea Cultural  

1. Saltwater lake between Europe and Asia, bordered by Azerbaijan, and Russia to the west, Kazakhstan to the north and east, Turkmenistan to the east, and Iran to the south and west; the largest inland body of water in the world.

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Discover More

The Volga River empties into the Caspian Sea.

Etymology

Origin of Caspian Sea

First recorded in 1590–1600

Example Sentences

That same evening, panicked residents of Tehran tried to flee north to the shores of the Caspian Sea, where many had sought refuge during the very first days of the war.

From Barron's • Apr. 8, 2026

An Iranian oil executive is planning to leave the capital for his second home, a villa by the Caspian Sea, where he and his family relocated during Israel’s 12-day war in June.

From The Wall Street Journal • Feb. 23, 2026

Both Beijing and Brussels support the development of a transport route across the Caspian Sea that allows reaching Central Asia from Europe through the Caucasus, bypassing Russia.

From Barron's • Nov. 6, 2025

It remains unclear why it was diverted over the Caspian Sea - a far longer journey than several other options.

From BBC • Dec. 27, 2024

For example, wild flax occurs west to Britain and Algeria and east to the Caspian Sea, while wild barley occurs east even to Tibet.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond