U-boat

noun

ˈyü-ˌbōt 

: a German submarine

Examples of U-boat in a Sentence

Recent Examples on the Web

Six days later, off the southern coast of Ireland, a German U-boat torpedoed the ship’s starboard side with such Teutonic precision that its funnels were underwater in eighteen minutes. — Claire Carusillo, Harpers Magazine, 4 Aug. 2026

Smoke from the fighting still rose on the horizon, but Picard’s eyes scanned the gray water below for signs of German U-boats. — Kevin Maurer, The Atlantic, 6 June 2026

Demand for honey and wax peaked again during WWII with a second round of U-boat attacks and strict rationing of paraffin wax. — Literary Hub, 27 May 2026

Six months later, in February, 1943, most of the men Jack sailed with that summer—including Glory and the pastry chef—were killed when the Dorchester was torpedoed by a German U-boat. — Joyce Johnson, New Yorker, 23 May 2026

Word History

Etymology

translation of German U-boot, short for Unterseeboot, literally, undersea boat

First Known Use

1914, in the meaning defined above

Rhymes for U-boat

• afloat
• azote
• banknote
• bareboat
• benzoate
• connote
• cutthroat
• demote
• denote
• devote
• endnote
• footnote

Kids Definition

U-boat

noun

ˈyü-ˈbōt

: a German submarine