noun
Etymology: playing from Middle English playing, pleying, from gerund of playen, pleyen to play — more at play
1. : a gaming implement made usually of pasteboard in a standard size (as 2 1/2″ or 2 1/4″ × 3 1/4″ × .009″) as one of a set of 24 to 78 cards with identical backs, marked on its face to show its rank and suit, and used in playing any of numerous games
2. : a card of a pack in which the suits are marked with designating symbols (as of a spade, heart, diamond, and club) and ranks (as of the series A, K, Q, J, 10, 9, 8, 7, 6, 5, 4, 3, 2)
3. plural : a pack of playing cards