The word "u-boat" in English means: A German submarine used in World War I and World War II., A submarine, especially a German one from either of the world wars..
The phonetic transcription of "u-boat" is /ˈjuː.bəʊt/ in British English and /ˈjuː.boʊt/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "u-boat": submarine, submersible.
Example usage of "u-boat": "The U-boat sank several ships, endangering many lives at sea.". More examples on the page.