| an island in SE New York: the boroughs of Brooklyn and Queens of New York City are located at its W end. 118 mi. (190 km) long; 12–20 mi. (19–32 km) wide; 1682 sq. mi. (4356 sq. km). |
| Long Island Abbr. L.I. A long, narrow island of southeast New York bordered on the south by the Atlantic Ocean. Long Island Sound, an arm of the Atlantic, separates it from Connecticut on the north. The western part of Long Island includes two boroughs of New York City. |
Island in New York state. Its western end is taken up by Brooklyn and Queens, two of the five boroughs that make up New York City.