Unscramble Secdefs

What is the meaning of word secdefs unscrambled?

What 7 letter words can be made from letters S E C D E F S:

Make more words by adding or removing letters

How many 6 letter words can you make from letters S E C D E F S?

1. cessed - Definition of cessed

2. fessed - Definition of fessed

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter S and unscrambling ecdefs
2) Removing the letter E and unscrambling scdefs
3) Removing the letter C and unscrambling sedefs
4) Removing the letter D and unscrambling secefs
5) Removing the letter E and unscrambling secdfs
6) Removing the letter F and unscrambling secdes
7) Removing the letter S and unscrambling secdef

More anagrams containing the letters S E C D E F S
secdesf secdfes esscdef sdsfeec