Sie ‧ gel, Bug ‧ sy /ˈsiːɡ ə l, ˈbʌɡzi/ BrE AmE
(1906–47) a New York ↑ gangster (=member of a violent group of criminals) , known for building the first large hotel and ↑ casino in Las Vegas in 1947, and for making Las Vegas the most popular place for ↑ gambling (=playing games to win money) in the US