Unscramble Rerdeins

What is the meaning of word rerdeins unscrambled?

What 8 letter words can be made from letters R E R D E I N S:

Make more words by adding or removing letters

How many 7 letter words can you make from letters R E R D E I N S?

1. deniers - Definition of deniers

2. dernier - Definition of dernier

3. derries - Definition of derries

4. desirer - Definition of desirer

5. Dreiser - Definition of Dreiser

6. nerdier - Definition of nerdier

7. nereids - Definition of nereids

8. redries - Definition of redries

9. renders - Definition of renders

10. rerisen - Definition of rerisen

11. resider - Definition of resider

12. resined - Definition of resined

13. serried - Definition of serried

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter R and unscrambling erdeins
2) Removing the letter E and unscrambling rrdeins
3) Removing the letter R and unscrambling redeins
4) Removing the letter D and unscrambling rereins
5) Removing the letter E and unscrambling rerdins
6) Removing the letter I and unscrambling rerdens
7) Removing the letter N and unscrambling rerdeis
8) Removing the letter S and unscrambling rerdein

More anagrams containing the letters R E R D E I N S
rerdeisn rerdenis inrredse errdensi