There are 15 words that end with 'proofs'.
| proofs | reproofs |
| airproofs | disproofs |
| babyproofs | bombproofs |
| mothproofs | fireproofs |
| rustproofs | rainproofs |
| flameproofs | soundproofs |
| waterproofs | greaseproofs |
| weatherproofs | |
Note: These 15 words that end with 'proofs' are found from the USA & Canada version of the tournament Scrabble word list.