Caye is a term that refers to a small, low-elevation, sandy island that is formed on the reef crest or shoals in the Caribbean Sea, especially around Belize. There are various synonyms for this word, such as key, kai, cay, or islet. These terms are often used interchangeably and refer to similar geographic features. Keys and kai are more commonly used in the Bahamas, while cays are more commonly used in the Caribbean. Islet is a more general term that refers to any small island. In fisheries, the term "cay" often refers to a fishing base or camp, and these synonyms can also be used to describe a range of coastal and marine habitats.