U-boats
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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
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
U-boats, Mr. Moorhouse tells us, were also plagued by malfunctioning torpedoes, mechanical failures and, eventually, the incessant—and often successful—depth-charge attacks of Allied warships.
From The Wall Street Journal • Nov. 7, 2025
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
The Allies banned German possession of U-boats in view of their massive submarine campaign in the war, which had sunk not just Allied but neutral shipping.
From Salon • Aug. 19, 2023
This helped to guide Allied ships around German U-boats in the North Atlantic.
From BBC • May 21, 2023
Somewhere out there, German U-boats glide above underwater canyons, and thirty-foot squid ferry their huge eyes through the cold dark.
From "All the Light We Cannot See" by Anthony Doerr
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
