Summary: Kotlin is a modern programming language that can be used for Android app development, server-side applications, and more. It offers features such as interoperability with Java, concise syntax, safety features, functional programming support, and coroutines for asynchronous programming. Kotlin is popular for Android development, server-side applications, web development, and cross-platform development. It is officially supported by Google for Android development and can be used with frameworks like Ktor. Kotlin can also be transpiled to JavaScript for web frontend development and supports cross-platform mobile and desktop development. Additionally, Kotlin is used in data science, scripting, and automation tasks. Overall, Kotlin’s design focuses on safety, conciseness, and interoperability, making it suitable for a wide range of programming tasks.