Casino Glossary

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Underlay

A bad or unfavorable bet. An event that has more money bet on its happening than can be justified by the probability of it happening.

Unit (Betting Units)

Technical term used to express the smallest amount of money used in wagering without specifying the actual Dollar or other currency amount. The player's actual 'chip' bet may be $1, $5, $25, $100 or other value. However, for purposes of simplifying gambling related calculations, the wager is specified as simply one betting unit or one chip.

Up Card (Upcard)

The face up card of the dealer's initial hand in blackjack. Standard casino rules require the dealers to deal their own opening hands with one card face-up and one card face-down. The card that is dealt face-up is the dealers 'up card'. The card the is dealt face-down is said to be the dealers 'hole card'.