+An **identifier** is a unique name or symbol used to distinguish one entity from another. It acts as a handle, enabling clear [Referencing](/wiki/referencing) and organization of [Data](/wiki/data) within any system. From a simple [Name](/wiki/name) to complex digital codes, identifiers are fundamental to clarity.
+## See also
+- [Symbol](/wiki/symbol)
+- [Label](/wiki/label)
+- [Key](/wiki/key)
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