Unscramble Formsets

What is the meaning of word formsets unscrambled?

What 8 letter words can be made from letters F O R M S E T S:

Make more words by adding or removing letters

How many 7 letter words can you make from letters F O R M S E T S?

1. forests - Definition of forests

2. fosters - Definition of fosters

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter F and unscrambling ormsets
2) Removing the letter O and unscrambling frmsets
3) Removing the letter R and unscrambling fomsets
4) Removing the letter M and unscrambling forsets
5) Removing the letter S and unscrambling formets
6) Removing the letter E and unscrambling formsts
7) Removing the letter T and unscrambling formses
8) Removing the letter S and unscrambling formset

More anagrams containing the letters F O R M S E T S
formsset formsste etmsfsor esrtomfs