Unscramble Isidef

What is the meaning of word isidef unscrambled?

What 6 letter words can be made from letters I S I D E F:

Make more words by adding or removing letters

How many 5 letter words can you make from letters I S I D E F?

1. defis - Definition of defis

Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling sidef
2) Removing the letter S and unscrambling iidef
3) Removing the letter I and unscrambling isdef
4) Removing the letter D and unscrambling isief
5) Removing the letter E and unscrambling isidf
6) Removing the letter F and unscrambling iside

More anagrams containing the letters I S I D E F
isidfe isiedf isdefi fdisei