The sea to the west of a specific area; also used historically as a general term for the West.

The Yellow Sea as referred to by Korean terminology.

(literary) an ancient name for Bosten Lake in Xinjiang

A historical administrative division established during the Han and Sui dynasties, located around present-day Qinghai Lake in Qinghai Province

(literary) an ancient term for the Western world, equivalent to the historical concept of 西洋 xī​yáng