This page provides all possible meanings and translations of the word CAY
key, cay, Florida key(noun)
a coral reef off the southern coast of Florida
A small, low island largely made of sand or coral.
see Key, a ledge
A cay, also spelled caye or key, is a small, low-elevation, sandy island formed on the surface of a coral reef. Cays occur in tropical environments throughout the Pacific, Atlantic and Indian Oceans, where they can provide habitable and agricultural land for hundreds of thousands of people. Their surrounding reef ecosystems also provide food and building materials for island inhabitants.