Token

Token ( English token ) denotes:

as currency , substitute currency or complementary currency :
- Token (coin) , an English divisional coin of private issue
- generally a token , especially in the English-speaking world
  - Coin for the use of the New York subway, see New York City Subway
  - Tram coins in general in the English-speaking world
- Plastic tokens as play money in games of chance and board games, see tokens
- in archeology a prehistoric calculating stone, see Calculus
- a positive reinforcer in behavior therapy, see token system
a tool for identification and authentication:
- Token (computer network) , a tool for synchronizing parallel processes
- a session identifier, an identifier for stateless protocols
- Software token , method for authorizing software services
- Hardware token , for identification and authentication
- Token (railway) , in the railway sector an object whose possession entitles the holder to travel on a single-track section of the route
a (smallest) unit in computer science and computational linguistics, see tokenization , also
- Token (translator construction) , the smallest meaningful unit of a programming language
- Tokenizer (also: lexical scanner, lexer for short), computer program
- Token-based compression
a marker in Petri nets and graph theory, see Petri net
Token and Type , in philosophy and linguistics a distinction between a single occurrence and an occurrence type
Tokenism , conscious or unconscious interaction with members of minorities

See also:

Wiktionary: Token - explanations of meanings, word origins, synonyms, translations