Unscramble Diffing

What is the meaning of word diffing unscrambled?

What 7 letter words can be made from letters D I F F I N G:

Make more words by adding or removing letters

How many 6 letter words can you make from letters D I F F I N G?

1. fifing - Definition of fifing

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter D and unscrambling iffing
2) Removing the letter I and unscrambling dffing
3) Removing the letter F and unscrambling difing
4) Removing the letter F and unscrambling difing
5) Removing the letter I and unscrambling diffng
6) Removing the letter N and unscrambling diffig
7) Removing the letter G and unscrambling diffin

More anagrams containing the letters D I F F I N G
diffngi diffnig idginff giifdnf