| Subject | English | Dutch |
| commun., IT | network user identifier | netwerkgebruikersidentificatie |
| commun., IT | numeric user identifier | numerieke gebruikersidentificatie |
| commun. | user identifier | gebruikersnaam |
| IT | user identifier | gebruikersidentificatiecode |
| comp., MS | user identifier | UID (An alphanumeric identification used to identify a particular user) |