"Swift" is a programming language developed by Apple for building applications on iOS, macOS, watchOS, and tvOS. It was introduced in 2014 to provide a modern, safe, and efficient way to write code. Swift is designed to be easy to read and write, making it accessible for both beginners and experienced developers. In addition to its user-friendly syntax, Swift offers powerful features like type inference, optionals, and memory management. These capabilities help developers create high-performance applications while reducing the likelihood of common programming errors. Swift has quickly gained popularity in the software development community.