| Subject | English | Welsh |
| comp., MS | alias (The portion of the e-mail address that appears to the left of the | enw arall |
| comp., MS | e-mail alias | e-bost arall (The portion of the e-mail address that appears to the left of the@symbol) |
| comp., MS | e-mail alias (The portion of the e-mail address that appears to the left of the | e-bost arall |
| comp., MS | managed property alias | enw arall priodwedd a reolir (An alternate name for a managed property) |