English noun: identification number | |||
| 1. | identification number (communication) a numeral or string of numerals that is used for identification | ||
| Samples | She refused to give them her Social Security number. | ||
| Synonyms | number | ||
| Broader (hypernym) | positive identification | ||
| Narrower (hyponym) | ABA transit number, bank identification number, BIN, license number, personal identification number, PIN, PIN number, registration number, Social Security number | ||