- an island in SE New York: the boroughs of Brooklyn and Queens of New York City are located at its W end. 118 miles (190 km) long; 12–20 miles (19–32 km) wide; 1,682 sq. mi. (4,356 sq. km).
- an island in SE New York State, separated from the S shore of Connecticut by Long Island Sound (an arm of the Atlantic): contains the New York City boroughs of Brooklyn and Queens in the west, many resorts (notably Coney Island), and two large airports (La Guardia and John F. Kennedy). Area: 4462 sq km (1723 sq miles)