Unscramble Isrsum

What is the meaning of word isrsum unscrambled?

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

Make more words by adding or removing letters

How many 5 letter words can you make from letters I S R S U M?

1. risus - Definition of risus

Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling srsum
2) Removing the letter S and unscrambling irsum
3) Removing the letter R and unscrambling issum
4) Removing the letter S and unscrambling isrum
5) Removing the letter U and unscrambling isrsm
6) Removing the letter M and unscrambling isrsu

More anagrams containing the letters I S R S U M
isrums isrusm msuirs ssumri