Groovy is well-suited for developing domain-specific languages (DSLs) due to its features for removing boilerplate code, closures, operator overloading, and AST transformations. A DSL is a computer language specialized for a particular application domain, unlike general-purpose languages. DSLs follow the open-closed principle and allow domain experts rather than programmers to specify certain aspects of an application. This document discusses how Groovy can help create DSLs that involve stakeholders and help developers.