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English definition of “identifier”

identifier

noun [C]     /aɪˈdentɪfaɪər/
(also ID) IT a set of numbers, letters, or symbols that is used to represent a piece of data or a process in a computer program: a device identifier
a name, series of numbers, etc. that is used in a system to represent someone or something: an airport identifier
(Definition of identifier noun from the Cambridge Business English Dictionary © Cambridge University Press)
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