Also see definition of "East Sea" in Word Study
East Sea [nave]
EAST SEASee: Dead Sea.
East sea [ebd]
(Joel 2:20; Ezek. 47:18), the Dead Sea, which lay on the east side of the Holy Land. The Mediterranean, which lay on the west, was hence called the "great sea for the west border" (Num. 34:6).
Also see definition of "East Sea" in Word Study