"역 (Reverse)" refers to the action of moving backward or changing direction to the opposite. In various contexts, it can describe reversing a vehicle, undoing a process, or flipping an object. This concept is essential in many fields, including mathematics, programming, and everyday activities. In the realm of technology, "역" is often used in software development to denote reversing changes in code or data. For example, in version control systems like Git, users can reverse commits to restore previous states. Understanding how to effectively reverse actions is crucial for problem-solving and maintaining order in various systems.