Unscramble Usisr

What is the meaning of word usisr unscrambled?

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

1. risus - Definition of risus

Make more words by adding or removing letters

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

1. sirs - Definition of sirs

2. sris - Definition of sris

3. SSRI - Definition of SSRI

4. USSR - Definition of USSR

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter U and unscrambling sisr
2) Removing the letter S and unscrambling uisr
3) Removing the letter I and unscrambling ussr
4) Removing the letter S and unscrambling usir
5) Removing the letter R and unscrambling usis

More anagrams containing the letters U S I S R
usris usrsi ssuri uissr