U-boat

noun

ˈyü-ˌbōt 

: a German submarine

Examples of U-boat in a Sentence

Recent Examples on the Web

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

The British lost many hundreds of ships to German U-boat attacks in 1917 alone, and with an average of 13 ships being sunk daily in the spring, the question of how to better protect ships was an important one. — Encyclopedia Britannica, 5 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