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1. Treated so as to become resistant
   "rust-proofed automobiles"; "shrink-proofed fabrics"

1. Make or take a proof of, such as a photographic negative, an etching, or typeset
    
2. Knead to reach proper lightness
   "proof dough"
    
3. Read for errors
   - proofread
    
4. Activate by mixing with water and sometimes sugar or milk
   "proof yeast"
    
5. Make resistant (to harm)
   "proof the materials against shrinking in the dryer"

See also: treated

Type of: alter, ascertain, assure, change, check, control, create, ensure, insure, knead, make, modify, produce, see, see to it, strengthen, work

Encyclopedia: Proof