A Domain-Specific Language (DSL) is a programming language designed to solve problems in a specific domain or area of interest. Unlike general-purpose languages like Python or Java, which can be used for a wide range of applications, DSLs are tailored to particular tasks, making them more efficient and easier to use for those specific purposes. Examples include SQL for database queries and HTML for web page structure. DSLs often provide a more intuitive syntax and features that align closely with the needs of their target users, such as data scientists or web developers. This specialization allows users to express their ideas more clearly and concisely, improving productivity and reducing the likelihood of errors in their code.