Unscramble Usitrefs

What is the meaning of word usitrefs unscrambled?

What 8 letter words can be made from letters U S I T R E F S:

1. surfeits - Definition of surfeits

2. surfiest - Definition of surfiest

Make more words by adding or removing letters

How many 7 letter words can you make from letters U S I T R E F S?

1. fissure - Definition of fissure

2. fussier - Definition of fussier

3. fustier - Definition of fustier

4. resifts - Definition of resifts

5. sifters - Definition of sifters

6. strifes - Definition of strifes

7. suiters - Definition of suiters

8. surfeit - Definition of surfeit

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter U and unscrambling sitrefs
2) Removing the letter S and unscrambling uitrefs
3) Removing the letter I and unscrambling ustrefs
4) Removing the letter T and unscrambling usirefs
5) Removing the letter R and unscrambling usitefs
6) Removing the letter E and unscrambling usitrfs
7) Removing the letter F and unscrambling usitres
8) Removing the letter S and unscrambling usitref

More anagrams containing the letters U S I T R E F S
usitresf usitrfes itssfreu rusefist