bookmaker Syllabification: (book·mak·er)Pronunciation: /ˈbo͝okˌmākər/Translate bookmaker | into French | into German | into Italian | into Spanish Definition of bookmaker noun a person who takes bets (especially on horse races), calculates odds, and pays out winnings. Derivatives bookmakingPronunciation: /-ˌmākiNG/ noun bookmaker in other Oxford dictionaries Definition of bookmaker in the British & World English dictionary