Unscramble Iftsets

What is the meaning of word iftsets unscrambled?

What 7 letter words can be made from letters I F T S E T S:

Make more words by adding or removing letters

How many 6 letter words can you make from letters I F T S E T S?

1. feists - Definition of feists

2. testis - Definition of testis

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling ftsets
2) Removing the letter F and unscrambling itsets
3) Removing the letter T and unscrambling ifsets
4) Removing the letter S and unscrambling iftets
5) Removing the letter E and unscrambling iftsts
6) Removing the letter T and unscrambling iftses
7) Removing the letter S and unscrambling iftset

More anagrams containing the letters I F T S E T S
iftsset iftsste esfstti ftsseit