Unscramble Ifststr

What is the meaning of word ifststr unscrambled?

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

Make more words by adding or removing letters

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

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 fststr
2) Removing the letter F and unscrambling iststr
3) Removing the letter S and unscrambling iftstr
4) Removing the letter T and unscrambling ifsstr
5) Removing the letter S and unscrambling ifsttr
6) Removing the letter T and unscrambling ifstsr
7) Removing the letter R and unscrambling ifstst

More anagrams containing the letters I F S T S T R
ifsttrs ifsttsr srfttsi trtssfi