Token

Token may refer to:

Token (railway signalling), a physical object given to a locomotive driver to authorize him to use a particular stretch of single railway track
Token coins, a piece of metal or other composition item used as a substitute for currency
Tokenism, the inclusion of a single person (or very few people) of a group so an organization can publicly claim to be inclusive
Token character, a supporting character in a story who has no real relevance to the plot but is included to conform to expected standards, such as featuring ethnic minorities in a cast of predominantly whites
Token Black, the only black child in the South Park television series
A small item used to represent players or other objects in games, particularly board games
One instance of a "type" in philosophy

Computing

Token (Windows NT architecture), a system object representing the subject of access control operations
Token (parser), usually a word or an atomic element within a literal string
Tokenizing, the operation of splitting a string of characters into a set of tokens in lexical analysis
Session token, a unique identifier which is generated and sent from a server to a software client to identify an interaction session and which the client usually stores as an HTTP cookie
Security token (also known as a hardware token, authentication token or cryptographic token), a physical device that an authorized user of computer services is given to aid in authentication
Cellular Authentication Token, a software replacement for a security token
Token ring, a local area network technology in which a virtual object known as a token is passed between devices on the network, authorizing them to communicate