Is “Island” a Scrabble word?

1. 1.A contiguous area of land, smaller than a continent, totally surrounded by water.

2. 2.An entity surrounded by other entities that are very different from itself.

   “an island of colors on a butterfly's wing”

3. 3.A superstructure on an aircraft carrier's deck.

Synonyms: oasis, ait, holm

1. 1.To surround with water; make into an island.

2. 2.To set, dot (as if) with islands.

3. 3.To isolate.

Synonyms: isle