English

Definition of billy goat noun from the Oxford Advanced Learner's Dictionary

 

billy goat

 noun
noun
BrE BrE//ˈbɪli ɡəʊt//
 
; NAmE NAmE//ˈbɪli ɡoʊt//
 
Farm animals, Domesticated mammals
 
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a male goat compare nanny goat See related entries: Farm animals, Domesticated mammals Word Originmid 19th cent.: from Billy, pet form of the given name William.
See the Oxford Advanced American Dictionary entry: billy goat