| Subject | English | Italian |
| comp., MS | multiple activation key | codice ad attivazione multipla (A volume license key that is used for one-time activation with activation services that are hosted by Microsoft) |
| mech.eng. | multiple keys | chiavette multipli |
| transp., mech.eng. | multiple keys | scanalatura |
| el. | multiple phase shift keying | ...multiplo a spostamento di fase |