Unscramble Ifterref

What is the meaning of word ifterref unscrambled?

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

Make more words by adding or removing letters

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

1. ferrite - Definition of ferrite

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling fterref
2) Removing the letter F and unscrambling iterref
3) Removing the letter T and unscrambling iferref
4) Removing the letter E and unscrambling iftrref
5) Removing the letter R and unscrambling ifteref
6) Removing the letter R and unscrambling ifteref
7) Removing the letter E and unscrambling ifterrf
8) Removing the letter F and unscrambling ifterre

More anagrams containing the letters I F T E R R E F
ifterrfe iftfeerr feiterrf trrfefei