Unscramble Isnum

What is the meaning of word isnum unscrambled?

What 5 letter words can be made from letters I S N U M:

1. minus - Definition of minus

2. munis - Definition of munis

Make more words by adding or removing letters

How many 4 letter words can you make from letters I S N U M?

1. muni - Definition of muni

2. muns - Definition of muns

3. nims - Definition of nims

4. Sium - Definition of Sium

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling snum
2) Removing the letter S and unscrambling inum
3) Removing the letter N and unscrambling isum
4) Removing the letter U and unscrambling isnm
5) Removing the letter M and unscrambling isnu

More anagrams containing the letters I S N U M
isumn isunm nismu nsium