Ophel

Meaning: hill; mound

the long, narrow, rounded promontory on the southern slope of the temple hill, between the Tyropoeon and the Kedron valley (2 Chronicles 27:3; 33:14; Neh. 3:26, 27)

It was surrounded by a separate wall, and was occupied by the Nethinim after the Captivity. This wall was discovered by the engineers of the Palestine Exploration Fund at the southeastern angle of the temple area. It is 4 feet below the present surface. In 2 Kings 5:24 this word is translated “tower” (Revised King James Version, “hill”), denoting probably some eminence near Elisha's house.