Unscramble Isifs

What is the meaning of word isifs unscrambled?

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

Make more words by adding or removing letters

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

1. Isis - Definition of Isis

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling sifs
2) Removing the letter S and unscrambling iifs
3) Removing the letter I and unscrambling isfs
4) Removing the letter F and unscrambling isis
5) Removing the letter S and unscrambling isif

More anagrams containing the letters I S I F S
isisf issfi ifssi ssfii