Unscramble Thredifs

What is the meaning of word thredifs unscrambled?

What 8 letter words can be made from letters T H R E D I F S:

1. redshift - Definition of redshift

Make more words by adding or removing letters

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

1. dithers - Definition of dithers

2. redfish - Definition of redfish

3. shifted - Definition of shifted

4. shifter - Definition of shifter

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter T and unscrambling hredifs
2) Removing the letter H and unscrambling tredifs
3) Removing the letter R and unscrambling thedifs
4) Removing the letter E and unscrambling thrdifs
5) Removing the letter D and unscrambling threifs
6) Removing the letter I and unscrambling thredfs
7) Removing the letter F and unscrambling thredis
8) Removing the letter S and unscrambling thredif

More anagrams containing the letters T H R E D I F S
thredisf thredsfi tdfeshri fhisdter