Academy/Glossary?BustA Blackjack hand whose total exceeds 21 and loses immediately.Aces help avoid some busts because they can count as 1 instead of 11. A hard total has no ace currently counted as 11. Play blackjack Game guide Related lessonsBlackjack Basics: Values and Actions More from the glossaryCash OutComboDouble DownExpected Value (EV)Free SpinsFree-Play CoinsGambler's FallacyGems and KeysHit RateHouse Edge All terms