| Subject | English | German |
| comp., MS | multiple activation key | Mehrfachaktivierungsschlüssel (A volume license key that is used for one-time activation with activation services that are hosted by Microsoft) |
| transp., mech.eng. | multiple keys | Keilverzahnungen |
| mech.eng. | multiple keys | Keile |
| mech.eng. | multiple keys | Rippen |
| mech.eng. | multiple keys | Vielfachkeile |
| mech.eng. | multiple keys | Keile einer Vielkeilwelle |
| transp., mech.eng. | multiple keys | Keilwellennut |
| transp., mech.eng. | multiple keys | Auszieherrille |
| transp., mech.eng. | multiple keys | Kerbverzahnungen |