: relating to the spring or early summer rainy season in China and Japan

Word History


Japanese, rain of the rainy season, from bai plum + u rain

First Known Use

1910, in the meaning defined above

Time Traveler
The first known use of bai-u was in 1910

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near bai-u

Cite this Entry

“Bai-u.” Dictionary, Merriam-Webster, Accessed 28 Nov. 2023.

Love words? Need even more definitions?

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