Page "Identifier" Paragraph 5

The concepts of name and identifier are denotatively equal, and the terms are thus denotatively synonymous ; but they are not always connotatively synonymous, because code names and ID numbers are often connotatively distinguished from names in the sense of traditional natural language naming.

For example, both " Jane Smith " and " Employee Number 8547 " are identifiers for the same specific human being ; but normal English-language connotation may consider " Jane Smith " a " name " and not an " identifier ", whereas it considers " Employee Number 8547 " an " identifier " but not a " name ".

This is an emic distinction rather than an etic one.