The meaning of the Acronym SF is...

SF is

• Science Fiction
• Speculative Fiction
• The Sophomore Freshman
• Samuel Freeman

More Meanings For SF:

• Square Footage
• Surface Features
• Science Fiction
• Self-Flocculating
• Spreading factor
• Super Fluorescence
• Speed Figure
• Schrodinger Functional
• Symmetry Factor
• Shield Fusion
• Static Force
• Super Free
• Strong Field
• Stackelberg Follower
• Simple Function

SF is also in:

• Architecture
• Astronomy
• Botany
• Electronics
• Mathematics
• Physics