Blackjack is a card game played between players and a dealer, where the goal is to achieve a hand value as close to 21 as possible without going over. Each participant receives two cards, and players can either "hit" for more cards or "stand" with their current total. Card values are simple: cards 2-10 hold their face values, face cards are worth 10, and aces can be 1 or 11. A special hand called "blackjack" occurs with an ace and a 10-value card. After players finish their turns, the dealer reveals their hidden card and must hit until reaching a minimum total, generally 17.