proper noun/ˌkaʝo ˈw̝eso/
Key West (an island in the Florida Keys), the westernmost significant cay in the archipelago.; Key West (a city, the county seat of Monroe County, Florida, United States in the Florida Keys), situated on the island of Key West and surrounding islands.
From cayo (“cay”) + hueso (“bone”). Named as such after the early discovery of the bones of indigenous peoples on the island, presumed to originate from their use of the island as a gravesite.