A "Wild Card" is a symbol or character used in various contexts, such as computing, games, and statistics, to represent one or more unspecified elements. In databases, for example, a wild card can be used in search queries to match a range of values, allowing users to retrieve more flexible results. In card games, a wild card can stand in for any other card, giving players more strategic options. This concept is also applied in programming, where wild cards can simplify code by allowing for broader matching criteria in data processing tasks.