/ˈblækdʒæk/
black·jack
BrE /ˈblækdʒæk/
NAmE /ˈblækdʒæk/
(BrE also pon·toon) [U]
a card game in which players try to collect cards with a total value of 21 and no more
[C] (especially NAmE)
a type of club used as a weapon, especially a metal pipe covered with leather