(1) A short name for Windows versions; for example, Win7 and Win10. In the 1990s, the executable program name for Windows 3.0 and 3.1 was WIN.EXE, which was typed in after DOS booted. Microsoft surely enjoyed having millions of people type "win" every time they launched Windows. See
Windows 3.0.
(2) All the Windows "how to's" in this encyclopedia contain a "Win" prefix.
(3) (WIN) (
Wireless
Intelligent
Network) A control system for cellular phone networks. Also known as IS-41 and ANSI-41, WIN and EDGE were key elements in the UWC-136 initiative. See
UWC Consortium.