a port in eastern Georgia near the mouth of the Savannah river
"The historic town of Savannah is located in eastern Georgia at the mouth of the Savannah River."
a river in South Carolina that flows southeast to the Atlantic
"The travelers followed the Savannah as it wound through Georgia before emptying into the Atlantic Ocean south of South Carolina, though they never saw its source which lies far upstream."
Alternative spelling of savanna
"The exotic Savanna cat prowled through the living room, its spotted coat looking like a small leopard."
A Savannah cat.
In plain English: A savannah is a large, open grassland with scattered trees and few other plants.
"We drove across the savannah to see the elephants grazing in the distance."
A locality in the Shire of Carpentaria, Queensland, Australia.
"The local community center in Savannah serves as a gathering place for residents living in that locality within the Shire of Carpentaria."
The word savannah likely entered English via the name of the Savannah River. This river's name may have originated from a Shawnee or Algonquian language.