Unscramble Setrf

What is the meaning of word setrf unscrambled?

What 5 letter words can be made from letters S E T R F:

1. frets - Definition of frets

Make more words by adding or removing letters

How many 4 letter words can you make from letters S E T R F?

1. efts - Definition of efts

2. erst - Definition of erst

3. fest - Definition of fest

4. fets - Definition of fets

5. fret - Definition of fret

6. refs - Definition of refs

7. reft - Definition of reft

8. rest - Definition of rest

9. rets - Definition of rets

10. serf - Definition of serf

11. tref - Definition of tref

12. tres - Definition of tres

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter S and unscrambling etrf
2) Removing the letter E and unscrambling strf
3) Removing the letter T and unscrambling serf
4) Removing the letter R and unscrambling setf
5) Removing the letter F and unscrambling setr

More anagrams containing the letters S E T R F
sfert sfetr retsf stref