Unscramble Tinproofs

What is the meaning of word tinproofs unscrambled?

What 9 letter words can be made from letters T I N P R O O F S:

Make more words by adding or removing letters

How many 8 letter words can you make from letters T I N P R O O F S?

1. frostnip - Definition of frostnip

2. Notropis - Definition of Notropis

3. portions - Definition of portions

4. positron - Definition of positron

5. sorption - Definition of sorption

Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter T and unscrambling inproofs
2) Removing the letter I and unscrambling tnproofs
3) Removing the letter N and unscrambling tiproofs
4) Removing the letter P and unscrambling tinroofs
5) Removing the letter R and unscrambling tinpoofs
6) Removing the letter O and unscrambling tinprofs
7) Removing the letter O and unscrambling tinprofs
8) Removing the letter F and unscrambling tinproos
9) Removing the letter S and unscrambling tinproof

More anagrams containing the letters T I N P R O O F S
tinproosf tinprosfo frsotopni tipnfoors