Unscramble Isptrfs

What is the meaning of word isptrfs unscrambled?

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

Make more words by adding or removing letters

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

1. firsts - Definition of firsts

2. spirts - Definition of spirts

3. sprits - Definition of sprits

4. stirps - Definition of stirps

5. strips - Definition of strips

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling sptrfs
2) Removing the letter S and unscrambling iptrfs
3) Removing the letter P and unscrambling istrfs
4) Removing the letter T and unscrambling isprfs
5) Removing the letter R and unscrambling isptfs
6) Removing the letter F and unscrambling isptrs
7) Removing the letter S and unscrambling isptrf

More anagrams containing the letters I S P T R F S
isptrsf isptsfr pstifsr prsstfi