verb (used with object)
Related formswa·ter·proof·er, nounwa·ter·proof·ness, noun
Examples from the Web for water-proofed
The side-walls and subgrade electric conduits were water-proofed with felt and pitch.
Finally, the concrete was water-proofed with two coats of soap, two of alum, and one of asphalt.
Removed from the model, it is water-proofed, the frame and fittings completed, and the boat varnished.Voyage of the Paper Canoe|Nathaniel H. Bishop
When Richard and Inspector Val, water-proofed to the chins, reached the mouth of the drain the storm was at furious height.The President|Alfred Henry Lewis
The food came in individual covered dishes, also of water-proofed paper.H. R.|Edwin Lefevre