Proof could mean:

  • An argument, including:
  • Proof (alcohol), measure of an alcoholic beverage's strength
  • Proofing (baking technique), how a yeast-leavened dough rises
  • Proofreading
  • Artist's proof, a single print taken during the printmaking process
  • Proof coinage, a coin made as an example of a particular strike
  • Proof test, for a firearm
  • Galley proof, an early version of a publication
  • Homeopathic proving, testing a substance's effect on the body

In entertainment: