An island ordinarily means dry land surrounded by water. In biblical usage, however, the term also denotes a maritime region, sea-coast, or inhabited land associated with the sea. It may therefore describe actual islands as well as continental shores and coastal districts.
The Bible speaks of the “islands of the sea,” the “isles of the Gentiles,” and simply “isles.” The term is used for Mediterranean shores and coastlands, including places associated with Chittim, and may be translated “coastland” in some passages.
The expression particularly concerns the shores and maritime regions around the Mediterranean Sea. It is contrasted with water and may carry the broader sense of habitable land by the sea.