MSF

MSF can stand for more than one thing. See:

Médecins Sans Frontières (aka Doctors Without Borders, a non-profit organization dedicated to providing medical care to people in war zones, disaster areas, and other similar situations)
Major Street-basketball Foundation (MSF Basketball)
MSF time signal
Manufacturing Science and Finance trade union (now part of Amicus) in the UK
Motorcycle Safety Foundation, the US organization that promotes motorcycle safety
Microsoft Solutions Framework The Microsoft guidance on how to effectively design, develop, deploy, operate, and support solutions built on Microsoft technologies
Muhammad Subuh Foundation -- a Subud charitable foundation
Multi-Stage Flash technology, in water desalination