- MSN
- Mission (Governmental » Military)* MicroSoft Network (Community » Media)* Make Some Noise (Miscellaneous » Funnies)* My Screen Name (Regional » US Phone Area Codes)* Medicare Summary Notice (Computing » General)* Multiple Subscriber Number (Computing » Telecom)* Media Serial Number (Internet » Chat)* Madison, Wisconsin USA (Regional » Airport Codes)* Mountaineer Sports Network (Community » Sports)* Dane County Regional - Truax Field (Governmental » Transportation)* Multiple Subscriber Numbering (Computing » Telecom)* Microsoft Network document (Computing » File Extensions)* Most Significant Nibble (Computing » Hardware)* Emerson Radio Corporation (Business » AMEX Symbols)* Mobile Subscriber Number (Computing » Telecom)* Mechanical Serial Number (Business » General)* Mission Starts Now (Governmental » Military)* Multi Subscriber Numbering (Computing » Networking)* Major Shaft Network (Miscellaneous » Funnies)* My Superior Network (Miscellaneous » Funnies)* Mentally Sub-Normal (Miscellaneous » Funnies)* Minority Scientist Network (Academic & Science » Universities)* My Silly Network (Miscellaneous » Funnies)* Me Speak Nogoodengrish (Miscellaneous » Funnies)* Many Single Nerds (Miscellaneous » Funnies)* Mega Software Net (Computing » Networking)
Abbreviations dictionary. 2012.