A language supports multiple dispatch and multimethods, dynamic inheritance, and optional electrostatic nature and severity checking. Unlike virtually all more OOP systems, Cecil allows subtyping & code inheritance to become utilized one by one, permitting dog-instance or even even external extension of object classes or cases. Prefer Objective-C, 100% object services around Cecil come invoked by message passing, & a language supports begin-instance class identification. These features allow Cecil to trend lines dynamic, explorative programming styles. Parameterized types & methods (generics, polymorphism), garbage collection, and delegation are as well supported. Cecil besides supports the module mechanism for even isolation of independent libraries or packages. Cecil doesn't presently trend lines threads or even any more form of concurrency. The standard library for Cecil is too available & includes various collection, utility, technique, I/O, & GUI classes.