The term UNO CARD is a crossword solution that consists of four letters: SKIP. UNO is a popular card game that was first released in 1971 by the company Mattel. The objective of the game is to be the first player to get rid of all their cards. Players take turns matching one of their cards with the card on the top of the discard pile, either by number, color, or word. If a player cannot match the card, they must draw from the deck. The SKIP card allows a player to SKIP the next player's turn.