Unscramble Isofs

What is the meaning of word isofs unscrambled?

What 5 letter words can be made from letters I S O F S:

Make more words by adding or removing letters

How many 4 letter words can you make from letters I S O F S?

1. foss - Definition of foss

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling sofs
2) Removing the letter S and unscrambling iofs
3) Removing the letter O and unscrambling isfs
4) Removing the letter F and unscrambling isos
5) Removing the letter S and unscrambling isof

More anagrams containing the letters I S O F S
isosf issfo isfso fsios