"Cross-Platform" refers to the ability of software or applications to operate on multiple operating systems or devices without needing significant changes. This means that a program designed for one platform, like Windows, can also run on others, such as macOS or Linux. This flexibility allows users to access the same features and functionalities regardless of their device choice. In the context of mobile applications, cross-platform development enables developers to create apps that work on both iOS and Android devices. This approach saves time and resources, as a single codebase can be used for different platforms, making it easier to maintain and update the application across various environments.