Reserved word
A
reserved word is a word which, in some computer
programming language, cannot be used as an
identifier because it is already used for some grammatical purpose. For instance, in
SQL, a user cannot be called 'group' because the word 'group' is used to indicate that an identifier refers to a group, not a user. In
Java,
const and
goto are reserved words -- they have no meaning in Java but they also cannot be used as identifiers.