Definition of "VF"

VF

noun
usually uncountable, plural VFs
1. (cardiology) Initialism of ventricular fibrillation.
2. (typography) Initialism of variable font.
adjective
not comparable
1. (philately) Initialism of very fine.
  Quotations
  Loose mixed lot, with duplication, of the Portugal & Colonies first decimal definitive designs. Very mixed condition, from VF to junk, all "mint" in some form or another, some MNH, some MH, some MHH, some MNG, etc.
  1995 February 12, R L Silverman, “For Sale: Portugal/Colonies "Ceres" 1912-1931”, in rec.collecting.stamps‎ (Usenet)
2. (numismatics, slang) Initialism of very fine.