Unscramble Irfsts

What is the meaning of word irfsts unscrambled?

What 6 letter words can be made from letters I R F S T 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 R F S T 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 rfsts
2) Removing the letter R and unscrambling ifsts
3) Removing the letter F and unscrambling irsts
4) Removing the letter S and unscrambling irfts
5) Removing the letter T and unscrambling irfss
6) Removing the letter S and unscrambling irfst

More anagrams containing the letters I R F S T S
irftss irsfst ssfrit srftis