- an island in the S Atlantic, about 125 miles (200 km) E of easternmost tip of Brazil: a Brazilian penal colony. 10 sq. mi. (26 sq. km).
- a volcanic island in the S Atlantic northeast of Cape São Roque: constitutes a federal territory of Brazil; a penal colony since the 18th century; inhabited by military personnel. Area: 26 sq km (10 sq miles)