Block
See Set.
Discard pile
The pile of discarded cards that sit face-up on the table.
Group
See Set.
Going out
Getting rid of all the cards in your hand.
Going Rummy
Getting rid of all the cards in your hand in one turn without having previously melded or layed off any cards. Typically scores double.
Laying off
The act of adding a card or cards to a run or set that has already been played.
Melding
The act of playing a set or a run by placing it face-up on the table in front of you.
Run
Three or more consecutive cards of the same suit. For example, 3 4 5 of hearts is a run. Also know as a sequence or a straight.
Set
Three or four cards of the same rank. For example, the 7 of hearts, 7 of spades and 7 of clubs are a set. Also known as a group or block.
Sequence
See Run.
Stock pile
The undealt cards that sit face-down on the table.
Straight
See Run.