- continental North America, S of Mexico, usually considered as comprising Guatemala, Belize, El Salvador, Honduras, Nicaragua, Costa Rica, and Panama. 227,933 sq. mi. (590,346 sq. km).
- an isthmus joining the continents of North and South America, extending from the S border of Mexico to the NW border of Colombia and consisting of Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, and Panama. Area: about 518 000 sq km (200 000 sq miles)