| Subject | English | Arabic |
| comp., MS | Activation Key | مفتاح التنشيط (The unique, 25-character number that activates prepaid computing with Windows) |
| comp., MS | multi-activation key | مفتاح التنشيط المتعدد (A product key that is provided to Microsoft customers who choose a Microsoft Volume Licensing program for their organizations and that allows multiple installations of a particular product. The key is assigned to a company or institution intended for their sole use and only for distribution to employees or third parties who are authorized to install and distribute licenses pursuant to the terms of their license agreement) |