Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun identification_number

1 sense of identification number

Sense 1
number, identification number -- (a numeral or string of numerals that is used for identification; "she refused to give them her Social Security number")
       => positive identification -- (evidence proving that you are who you say you are; evidence establishing that you are among the group of people already known to the system; recognition by the system leads to acceptance; "a system for positive identification can prevent the use of a single identity by several people")