Playing cards are a popular form of entertainment and have been around for centuries. The term 'playing cards' can be broken down into six solutions: ACES (4 letters), DECK (4 letters), Nines (5 letters), PACK (4 letters), Tens (4 letters), and Kings (5 letters). ACES are the highest ranking card in a DECK of playing cards, followed by Kings, Queens, Jacks, Tens, Nines, Eights, Sevens, Sixes, Fives, Fours, Threes, and Twos. A DECK is a set of playing cards, usually consisting of 52 cards. A PACK is a group of playing cards, usually containing one or more decks. TREYS are another name for threes.