1) Chattahoochee river 2) River 
[n] - a river rising in northern Georgia and flowing southwest and south to join the Flint River at the Florida border where they form the Apalachicola River
Chattahoochee River noun a river rising in northern Georgia and flowing southwest and south to join the Flint River at the Florida border where they form the Apalachicola River
a river flowing S from N Georgia along part of the boundary between Alabama and Georgia into the Apalachicola River. ab. 418 mi. (675 km) long.