Definition of bookmaker noun from the Oxford Advanced American Dictionary

 

bookmaker

 noun
noun
NAmE//ˈbʊkˌmeɪkər//
 
(informal bookie)
 
jump to other results
a person whose job is to take bets on the result of horse races, etc. and pay out money to people who win
 
noun [uncountable]
See the Oxford Advanced Learner's Dictionary entry: bookmaker