The term CAY is used to refer to a small, low-lying island or reef, usually found in tropical climates. The term can also be used to refer to a small, isolated hill or mound. The crossword solutions for the term CAY include KEY (3 letters), ISLE (4 letters), ISLET (5 letters), ISLING (6 letters), CORAL (5 letters), and ILOT (4 letters). KEY refers to a small island, while ISLE, ISLET, and ISLING are all terms used to describe a small island or reef. CORAL is a type of rock formation that is often found around islands, while ILOT is a French term for a small island.