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What does SF stand for?

SF stands for Space Filler (philately)

This definition appears frequently and is found in the following Acronym Finder categories:

  • Slang/chat, popular culture

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Other Resources:
We have 146 other meanings of SF in our Acronym Attic

Samples in periodicals archive:

Byline: JULIE CHAMBERLAIN INTERNATIONAL artists are proving expert space fillers at a Warwickshire exhibition.
Mechanical protection, provided to control strains during shipment (compression, bending, torsion, shearing, jolting and vibration) can be supplemented by space fillers inside the package to prevent the merchandise from moving within the package.