bookmaker /ˈbʊkˌmeɪkɚ/ noun plural bookmakers
plural bookmakers
Learner's definition of BOOKMAKER
[count]
: a person who decides how likely it is that an event will occur (such as the winning of a race by a particular horse) and receives and pays off bets about it（赛马等）赌注登记经纪人 — called also (informal) bookie
— bookmaking
/ˈbʊkˌmeɪkɪŋ/ noun [noncount]