Search Dictionary
Definition of kosi

kosi

/ˈkoʊ.si/
ko · si
JUMP TO:

kosi Lexical Profile

• noun

1

A major trans-boundary river in Asia that flows through Nepal and the Indian state of Bihar before joining the Ganges. It is historically referred to as the 'Sorrow of Bihar' due to its frequent, devastating floods.

2

A former administrative zone in eastern Nepal, named geographically after the nearby Kosi River.

Example

"Before Nepal restructured into provinces, the region was governed as part of the Kosi Zone."

Synonyms
View all synonyms for kosi

• Rhymes for kosi

• Nearby Words

korma
kosher
koshi
kosi
kosovo
kotex
kouprey

Word Origin & Etymology

Derived from the ancient Hindu sage Vishvamitra, who was also known as Kausika. In the epic Mahabharata, the river is referred to as the Kausiki.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Kosi. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/kosi
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.