>>3
Lisp-2 tends to refer to 2 namespaces (values and functions). Symbols tend to have more than 2 namespaces in CL (first they belong to packages, they can represent classes/structures/other objects, they have belong in the functional namespace and value namespace, and the user can definy any namespaces he wants for the symbol (it's a common practice))
This is why classically you can call CL a Lisp-2 to show how it's different from Scheme which is a Lisp-1 (no difference between function and value namespace), but in reality CL is a Lisp-n as it has more than 2 namespaces by default and users tend to add new ones all the time.