"Sunny; height, one of the eminences on which Jerusalem was" "built. It was surrounded on all sides, except the north, by deep" "valleys, that of the Tyropoeon (q.v.) separating it from Moriah" "(q.v.), which it surpasses in height by 105 feet. It was the" south-eastern hill of Jerusalem. "When David took it from the Jebusites (Josh. 15:63; 2 Sam. 5:7) "he built on it a citadel and a palace, and it became "the city" "of David" (1 Kings 8:1; 2 Kings 19:21, 31; 1 Chr. 11:5). In the" later books of the Old Testament this name was sometimes used (Ps. 87:2; 149:2; Isa. 33:14; Joel 2:1) to denote Jerusalem in "general, and sometimes God's chosen Israel (Ps. 51:18; 87:5)." "In the New Testament (see [686]SION) it is used sometimes to "denote the Church of God (Heb. 12:22), and sometimes the" heavenly city (Rev. 14:1).

See where Zion occurs in the Bible...

Definition of Zion:
"monument; raised up; sepulcher"