Definition of Arapaho noun from the Oxford Advanced Learner's Dictionary

 

Arapaho

 noun
noun
BrE
 
; NAmE
 
(pl. Arapaho, Arapahos)
 
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a member of a Native-American group. They lived on the Great Plains, where they hunted buffalo. Today most Arapahos live on reservations (= areas of land given and protected by the US government) in Oklahoma and Wyoming, and earn money by renting their land for the discovery of oil and gas.
See the Oxford Advanced American Dictionary entry: Arapaho