- an island in the central West Indies: a commonwealth associated with the U.S. 3,435 sq. mi. (8,895 sq. km). Capital: San Juan. Abbreviation: P.R., PR
- an autonomous commonwealth (in association with the US) occupying the smallest and easternmost of the Greater Antilles in the Caribbean: one of the most densely populated areas in the world; ceded by Spain to the US in 1899. Currency: US dollar. Capital: San Juan. Pop: 3 674 209 (2013 est). Area: 9104 sq km (3515 sq miles)
