| Subject | English | Korean |
| comp., MS | locally-unique identifier | 로컬 단일 식별자 (A 64-bit value that is guaranteed to be unique on the operating system that generated it until the system is restarted) |
| comp., MS | Microsoft .NET Passport unique identifier | Microsoft .NET Passport 고유 식별자 (A unique identifier used to represent a Passport account) |
| comp., MS | organizationally unique identifier | 조직 고유 식별자 (An unique identifier assigned to organizations and managed by the IEEE) |
| math. | unique factor | 유일인자 |
| comp., MS | unique identifier | 고유 식별자 (A 16-byte value generated from the unique identifier on a device, the current date and time, and a sequence number. It is used to identify a particular device, component, user, or session) |
| comp., MS | unique index | 고유 인덱스 (An index in which no two rows are permitted to have the same index value, thus prohibiting duplicate index or key values) |
| comp., MS | unique permission | 고유한 사용 권한 (A permission setting for using a list, library, or site that is different from the permission settings of its parent site) |