Σιών
indecl.,
in NT anarth., but in LXX when used of the city of Jerusalem, ἡ Σ.
(Heb. צִיּוֹן),
Zion;
__1. the mountain: in typical sense, of the Church, Heb.12:22; of heaven, Rev.14:1.
__2. The city, i.e. Jerusalem; in poetical sense;
__(a) of the inhabitants: θυγάτηρ Σ, Mat.21:5, Jhn.12:15" (LXX) ;
__(b) in wider sense, of Israel: Rom.11:26;
__(with) figuratively: τίθήμι ἐν Σ λίθον, Rom.9:33, 1Pe.2:6" (LXX) .†
(From Abbott-Smith. LSJ has no entry)