Definition
The ace of clubs is a playing card in a standard deck. It's represented by a single club symbol, which looks like a three-leaf clover. In many card games, the ace is considered the highest-ranking card. It can also sometimes act as the lowest-ranking card, depending on the game. The ace of clubs doesn't have any inherent special powers. It's simply another card in the deck, but often carries a psychological importance. Knowing when to play it is key to winning.