Unscramble Isrtfs

What is the meaning of word isrtfs unscrambled?

What 6 letter words can be made from letters I S R T F S:

1. firsts - Definition of firsts

Make more words by adding or removing letters

How many 5 letter words can you make from letters I S R T F S?

1. first - Definition of first

2. fists - Definition of fists

3. frits - Definition of frits

4. rifts - Definition of rifts

5. sifts - Definition of sifts

6. stirs - Definition of stirs

Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling srtfs
2) Removing the letter S and unscrambling irtfs
3) Removing the letter R and unscrambling istfs
4) Removing the letter T and unscrambling isrfs
5) Removing the letter F and unscrambling isrts
6) Removing the letter S and unscrambling isrtf

More anagrams containing the letters I S R T F S
isrtsf issfrt rifsst rtsisf