The meaning of the Acronym SF is...

SF is

• Stimulant Free
• Sucrose Formulated
• Sugar Free
• Shun Fat
• Sting Free

More Meanings For SF:

• Square Footage
• Surface Features
• Science Fiction
• Self-Flocculating
• Spreading factor
• Super Fluorescence
• Summed Frequency
• Simple Flux
• Step Frequency
• South Fork
• Shallow Faulting
• Scaling Factor
• Stackelberg Follower
• Simple Function
• Small Fall

SF is also in:

• Architecture
• Astronomy
• Botany
• Electronics
• Geology
• Mathematics
• Meteorology