U-boat

noun
\ ˈyü-ˌbōt How to pronounce U-boat (audio) \

Definition of U-boat

: a German submarine

First Known Use of U-boat

1914, in the meaning defined above

History and Etymology for U-boat

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

Keep scrolling for more

Learn More About U-boat

Statistics for U-boat

Cite this Entry

“U-boat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/U-boat. Accessed 21 Jun. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for U-boat

U-boat

noun

English Language Learners Definition of U-boat

: a German submarine

WORD OF THE DAY

Test Your Vocabulary

Return of Name that Color!

  • a light greenish blue color
  • Name that color:
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!