Unscramble Lefsr

What is the meaning of word lefsr unscrambled?

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

Make more words by adding or removing letters

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

1. refs - Definition of refs

2. self - Definition of self

3. serf - Definition of serf

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter L and unscrambling efsr
2) Removing the letter E and unscrambling lfsr
3) Removing the letter F and unscrambling lesr
4) Removing the letter S and unscrambling lefr
5) Removing the letter R and unscrambling lefs

More anagrams containing the letters L E F S R
lerfs lersf fersl rsfel