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| ANSI Common Lisp 11 Packages 11.1 Package Concepts 11.1.2 Standardized Packages ### 11.1.2.3 The KEYWORD Package The `keyword` package contains symbols, called keywords1, that are typically used as special markers in programs and their associated data expressions1. Symbol tokens that start with a package marker are parsed by the Lisp reader as symbols in the `keyword` package; see Section 2.3.4 Symbols as Tokens. This makes it notationally convenient to use keywords when communicating between programs in different packages. For example, the mechanism for passing keyword parameters in a call uses keywords1 to name the corresponding arguments; see Section 3.4.1 Ordinary Lambda Lists. Symbols in the `keyword` package are, by definition, of type keyword. 11.1.2.3.1 Interning a Symbol in the KEYWORD Package 11.1.2.3.2 Notes about The KEYWORD Package

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