A generalized kind of number used to denote the size of a set, including infinite sets.
A word that expresses a countable quantity; a cardinal numeral.
A number used to denote quantity; a counting number; a cardinal.
The abstract minimum unit of language or meaning that underlies such a set.
The word-form chosen to represent such a set or family.
The set itself; a lexemic family.
An individual instance of a continuous character sequence without spaces, used in lexical analysis (see token).