Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
ISLES OF THE GENTILES. Gen 10:5; Zeph 2:11; Ps 72:10; Eze 26:15. The Hebrew word signifies any land bordering on the sea, and "the isles of the Gentiles" refers to the coasts of the Mediterranean, Black, and Caspian Seas.