A countdown is a numerical sequence that is recited in reverse order, typically leading to a significant event or the moment at which something is to occur. It often starts from a predetermined number, such as ten or five, and decreases to zero. Countdown processes are commonly used in various contexts, including sports events, rocket launches, and New Year’s celebrations, to build anticipation and mark the approach of an important moment. The act of counting down signifies the passage of time or the reduction of a specified duration until a planned action takes place, creating excitement or urgency in the process.