Unscramble Itstrfs

What is the meaning of word itstrfs unscrambled?

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

Make more words by adding or removing letters

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

1. firsts - Definition of firsts

2. fritts - Definition of fritts

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling tstrfs
2) Removing the letter T and unscrambling istrfs
3) Removing the letter S and unscrambling ittrfs
4) Removing the letter T and unscrambling itsrfs
5) Removing the letter R and unscrambling itstfs
6) Removing the letter F and unscrambling itstrs
7) Removing the letter S and unscrambling itstrf

More anagrams containing the letters I T S T R F S
itstrsf itstsfr itfstrs ifrsstt