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

 

gaucho

 noun
noun
BrE BrE//ˈɡaʊtʃəʊ//
 
; NAmE NAmE//ˈɡaʊtʃoʊ//
 
(pl. gauchos)
 
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a S American cowboy Word OriginLatin American Spanish, probably from Araucanian (a language spoken by Native Americans in Chile and Argentina) kauču ‘friend’.
See the Oxford Advanced American Dictionary entry: gaucho