Unscramble Sfst

What is the meaning of word sfst unscrambled?

What 4 letter words can be made from letters S F S T:

Make more words by adding or removing letters

How many 3 letter words can you make from letters S F S T?

Which 3 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter S and unscrambling fst
2) Removing the letter F and unscrambling sst
3) Removing the letter S and unscrambling sft
4) Removing the letter T and unscrambling sfs

More anagrams containing the letters S F S T
sfts ssft stfs ftss