**Description:** The ‘Abstract Configurable Application Context’ in the Spring Framework is an abstract class that provides a configurable ApplicationContext, allowing developers to customize and extend the behavior of the application context. This class is fundamental in the Spring architecture, acting as a container that manages the creation, configuration, and lifecycle of objects (beans) within an application. Being abstract, it cannot be instantiated directly, but it provides methods and properties that can be used by its subclasses to implement specific configurations. This allows for great flexibility in how application components are configured and managed, facilitating the integration of different modules and the customization of business logic. Additionally, using a configurable context allows developers to define different configuration profiles, which is especially useful in various environments such as development, testing, and production. In summary, the ‘Abstract Configurable Application Context’ is a key piece in the Spring Framework infrastructure, providing a solid foundation for building robust and scalable applications.