Full-stack development encompasses both front-end and back-end development, allowing developers to work on all aspects of a web application or software project. This includes designing and building the user interface (front end) as well as implementing server-side logic, databases, and APIs (back end). Full-stack developers are proficient in a wide range of technologies and frameworks, enabling them to handle all aspects of the development process from concept to deployment. They have a comprehensive understanding of both client-side and server-side programming, making them versatile and capable of delivering end-to-end solutions for various projects.