| 1. | an island off S Florida, in the Gulf of Mexico. 4 mi. (6.4 km) long; 2 mi. (3.2 km) wide. |
| 2. | a seaport on this island: the southernmost city in the U.S.; naval base. 24,292. |
| Key West A city of extreme southern Florida on the island of Key West, the westernmost of the Florida Keys in the Gulf of Mexico. Fishing and tourism are important to its economy. Population: 23,300. |