边疆
biān jiāng · HSK 7
border area
🏔️🚧 biān jiāng = edge + territory — the lands at the edge of the realm
边 (biān) means side or edge, 疆 (jiāng) means territory or boundary. Together they denote the outermost territory of a country — the frontier region where one nation ends and another begins.
边 — 辶 (walk) + 臱 (phonetic)
边 is the simplified form of 邊. It combines the walking radical 辶 with the phonetic component 臱, suggesting a place reached by walking — the edge or border of a territory. The meaning extended from 'frontier' to 'side' or 'edge' in general.