# Usan

> English word · Proper noun

## Definitions
1. A historical kingdom of Korea, on Ulleungdo in the Sea of Japan; subjugated by Goryeo in 930 A.D..

## Etymology
Borrowed from Korean 우산(于山) (Usan).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/usan