Unscramble Idsref

What is the meaning of word idsref unscrambled?

What 6 letter words can be made from letters I D S R E F:

Make more words by adding or removing letters

How many 5 letter words can you make from letters I D S R E F?

1. defis - Definition of defis

2. dries - Definition of dries

3. fired - Definition of fired

4. fires - Definition of fires

5. fried - Definition of fried

6. fries - Definition of fries

7. frise - Definition of frise

8. reifs - Definition of reifs

9. resid - Definition of resid

10. rides - Definition of rides

11. serif - Definition of serif

12. sired - Definition of sired

Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling dsref
2) Removing the letter D and unscrambling isref
3) Removing the letter S and unscrambling idref
4) Removing the letter R and unscrambling idsef
5) Removing the letter E and unscrambling idsrf
6) Removing the letter F and unscrambling idsre

More anagrams containing the letters I D S R E F
idsrfe iedfrs defirs ifserd