What does “doubling” mean in Black Jack?
If you are dealt a total of 9, 10 or 11 in your initial hand, you may double down. This doubles your bet, but you are only allowed to draw one further card.
What does “splitting” mean in Black Jack?
This allows you to play 2 hands if you are dealt identical cards, each starting with one of the cards. Your bet is split between the two hands.