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U-boats

Cultural  
  1. German submarines during World War I and World War II. U-boat is a translation of the German U-boot, which is short for Unterseeboot, or “undersea boat.”


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Lusitania was sunk by a U-boat. Eventually, U-boat attacks on neutral ships drew the United States into the war.

Example Sentences

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Once the Navy had cleared the coast of U-boats, writes Mr. Wallace, New York became “the most spectacular war port in the world.”

From The Wall Street Journal Oct. 17, 2025

Gasoline rationing was instituted: There was no lack of product from the oil fields, it was simply being torpedoed by U-boats, causing severe shortages along the East Coast.

From Salon Sep. 21, 2024

Guy Ritchie’s latest follows a group of British special forces who took on German U-boats during World War II — and helped inspire James Bond.

From Los Angeles Times Jul. 23, 2024

This helped to guide Allied ships around German U-boats in the North Atlantic.

From BBC May 21, 2023

I was also sure that a search had been started for us, not fully understanding that a war was on and that all the ships and aircraft were needed to fight the U-boats.

From "The Cay" by Theodore Taylor

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