PSF
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PSF is a three-letter abbreviation or three-letter acronym (TLA) that may stand for:
- Pacific Salmon Foundation
- Penile scrotal fusion
- Perfect Storm Foundation
- Permanent School Fund
- Pharmaciens sans Frontières
- Phelps-Stokes Fund
- Piano Santa Foundation
- Planetary Studies Foundation
- Plastic Surgeons Forum
- PlayStation Sound Format or Portable Sound Format
- Point spread function
- Police Suicide Foundation
- Pounds per square foot
- Price per square foot
- Private sector forestry
- Progressive segmented Frame
- Prolate spheroidal function
- Protein Structure Factory
- Proteus Syndrome Foundation
- Python Software Foundation