Unscramble Ffsid

What is the meaning of word ffsid unscrambled?

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

1. diffs - Definition of diffs

Make more words by adding or removing letters

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

1. diff - Definition of diff

2. difs - Definition of difs

3. fids - Definition of fids

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter F and unscrambling fsid
2) Removing the letter F and unscrambling fsid
3) Removing the letter S and unscrambling ffid
4) Removing the letter I and unscrambling ffsd
5) Removing the letter D and unscrambling ffsi

More anagrams containing the letters F F S I D
fidfs fidsf fdsfi fsdif