Unscramble Rengrids

What is the meaning of word rengrids unscrambled?

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

1. grinders - Definition of grinders

2. regrinds - Definition of regrinds

Make more words by adding or removing letters

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

1. dingers - Definition of dingers

2. engirds - Definition of engirds

3. girders - Definition of girders

4. grinder - Definition of grinder

5. regrind - Definition of regrind

6. ringers - Definition of ringers

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter R and unscrambling engrids
2) Removing the letter E and unscrambling rngrids
3) Removing the letter N and unscrambling regrids
4) Removing the letter G and unscrambling renrids
5) Removing the letter R and unscrambling rengids
6) Removing the letter I and unscrambling rengrds
7) Removing the letter D and unscrambling rengris
8) Removing the letter S and unscrambling rengrid

More anagrams containing the letters R E N G R I D S
rengrisd rengrsdi riresndg rgsderni