Unscramble Isisms

What is the meaning of word isisms unscrambled?

What 6 letter words can be made from letters I S I S M S:

1. missis - Definition of missis

Make more words by adding or removing letters

How many 5 letter words can you make from letters I S I S M S?
Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling sisms
2) Removing the letter S and unscrambling iisms
3) Removing the letter I and unscrambling issms
4) Removing the letter S and unscrambling isims
5) Removing the letter M and unscrambling isiss
6) Removing the letter S and unscrambling isism

More anagrams containing the letters I S I S M S
isissm ismiss sismis misssi