Unscramble Udefs

What is the meaning of word udefs unscrambled?

What 5 letter words can be made from letters U D E F S:

1. feuds - Definition of feuds

2. fused - Definition of fused

Make more words by adding or removing letters

How many 4 letter words can you make from letters U D E F S?

1. dues - Definition of dues

2. Duse - Definition of Duse

3. feds - Definition of feds

4. feud - Definition of feud

5. feus - Definition of feus

6. fuds - Definition of fuds

7. fuse - Definition of fuse

8. sued - Definition of sued

9. used - Definition of used

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter U and unscrambling defs
2) Removing the letter D and unscrambling uefs
3) Removing the letter E and unscrambling udfs
4) Removing the letter F and unscrambling udes
5) Removing the letter S and unscrambling udef

More anagrams containing the letters U D E F S
udesf udfes dfeus usdef