bronco

US /ˈbrɑːŋ.koʊ/
UK /ˈbrɑːŋ.koʊ/
"bronco" picture
1.

a wild or half-tamed horse of the western US.

:
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The cowboy tried to ride the bucking bronco.
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He was thrown from the bronco during the rodeo.
:
mustangwild horse