Easton's Bible Dictionary (1897)/Deep

Deep : Used to denote (1) the grave or the abyss (Rom. 10:7; Luke 8:31); (2) the deepest part of the sea (Ps. 69:15); (3) the chaos mentioned in Gen. 1:2; (4) the bottomless pit, hell (Rev. 9:1, 2; 11:7; 20:13).