Zen Count (a term used in blackjack)

Zero roulette – This is the number found on the wheel in roulette, distinguished differently from the red & black numbers by it's green color. Although this was mainly introduced to further the house advantage, it can also be bet upon in the same way as the normal numbers from 1-36.

Z-Game (poker term) – This is the smallest game in a card room or casino in way of the amount bet at the table. Therefore, it is the opposite of A-game, where much larger sums are bet.

Zilch (videopoker terminology)

Zip (poker term)

Zombie (poker term)

Zuke (poker term)