Definition of Chattanooga from the Oxford Advanced Learner's Dictionary

 

Chattanooga

 
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a US city in the state of Tennessee. It is on the Tennessee River and next to Lookout Mountain. During the American Civil War, Union soldiers climbed the mountain to defeat the Southern army at the Battle of Chattanooga (1863). The city is also well known because of the song Chattanooga Choo Choo.