Unscramble Xrefs

What is the meaning of word xrefs unscrambled?

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

Make more words by adding or removing letters

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

1. refs - Definition of refs

2. serf - Definition of serf

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter X and unscrambling refs
2) Removing the letter R and unscrambling xefs
3) Removing the letter E and unscrambling xrfs
4) Removing the letter F and unscrambling xres
5) Removing the letter S and unscrambling xref

More anagrams containing the letters X R E F S
xresf xrfes serfx ersxf