Unscramble Usists

What is the meaning of word usists unscrambled?

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

1. tussis - Definition of tussis

Make more words by adding or removing letters

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

1. Issus - Definition of Issus

2. sissu - Definition of sissu

3. situs - Definition of situs

4. suits - Definition of suits

Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter U and unscrambling sists
2) Removing the letter S and unscrambling uists
3) Removing the letter I and unscrambling ussts
4) Removing the letter S and unscrambling usits
5) Removing the letter T and unscrambling usiss
6) Removing the letter S and unscrambling usist

More anagrams containing the letters U S I S T S
usitss ussist ussist tissus