Unscramble Ifdfd

What is the meaning of word ifdfd unscrambled?

What 5 letter words can be made from letters I F D F D:

Make more words by adding or removing letters

How many 4 letter words can you make from letters I F D F D?

1. diff - Definition of diff

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling fdfd
2) Removing the letter F and unscrambling idfd
3) Removing the letter D and unscrambling iffd
4) Removing the letter F and unscrambling ifdd
5) Removing the letter D and unscrambling ifdf

More anagrams containing the letters I F D F D
iffdd ddffi dfifd dfdfi