What is "upcard"

n. 1 (context card games English) In stud poker or blackjack, a playing card dealt face up and left on the table for others to see. 2 (context card games English) In rummy, the top card of the discard pile.

An upcard is a face up playing card. A number of card games incorporate upcards:

• In stud poker, a card dealt face up to a player that other players can see.
• In blackjack, the card the dealer deals to himself for all the players to see.
• In the rummy family, a face up card available for players to draw.

Depending on the rules, a card that is accidentally dealt face up or otherwise revealed may become an upcard, or may be discarded, or may invalidate the entire hand.