Unscramble Proofsrain

What is the meaning of word proofsrain unscrambled?

What 10 letter words can be made from letters P R O O F S R A I N:

1. rainproofs - Definition of rainproofs

Make more words by adding or removing letters

How many 9 letter words can you make from letters P R O O F S R A I N?

1. airproofs - Definition of airproofs

2. rainproof - Definition of rainproof

Which 9 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter P and unscrambling roofsrain
2) Removing the letter R and unscrambling poofsrain
3) Removing the letter O and unscrambling profsrain
4) Removing the letter O and unscrambling profsrain
5) Removing the letter F and unscrambling proosrain
6) Removing the letter S and unscrambling proofrain
7) Removing the letter R and unscrambling proofsain
8) Removing the letter A and unscrambling proofsrin
9) Removing the letter I and unscrambling proofsran
10) Removing the letter N and unscrambling proofsrai

More anagrams containing the letters P R O O F S R A I N
proofsrani proofsrian ianrofpors aiporrsfno