The term DOT IN THE OCEAN can be solved by two crossword solutions: ISLET (5 letters) and ISLE (4 letters). An ISLET is a small island, usually less than one hectare in size, located in a body of water such as a river, lake, or ocean. An ISLE is a larger island, typically over one hectare in size, located in a body of water such as a river, lake, or ocean. Both terms are used to describe a landmass surrounded by water.