'BaaS' refers to Backend as a Service in cloud computing, which provides developers with cloud-based solutions for building and managing the backend of applications. By utilizing BaaS, developers can focus on front-end functionality without worrying about server management, database integration, or user authentication. This service streamlines the development process, enabling faster deployment and scalability. BaaS providers also often offer features like cloud storage, APIs, and analytics, allowing developers to create robust applications while reducing operational complexity and maintenance efforts.