1. (n.) An island\.

2. (n.) A spot within another of a different color, as upon the wings of some insects.

3. (v. t.) To cause to become an island, or like an island; to surround or encompass; to island.

ait archipelago atoll bar cay continental island coral head coral island coral reef holm insularity island island group islandology islet key oceanic island reef sandbank sandbar