island

ot noun

1. An entity surrounded by other entities that are very different from itself. an island of colors on a butterfly's wing
2. A traffic island. the island in the middle of a roundabout
3. A contiguous area of land, smaller than a continent, totally surrounded by water.
4. A superstructure on an aircraft carrier's deck.

fe’l verb

1. To surround with water; make into an island.
2. To set, dot (as if) with islands.
3. To isolate.