Unscramble Rctfs

What is the meaning of word rctfs unscrambled?

What 5 letter words can be made from letters R C T F S:

Make more words by adding or removing letters

How many 4 letter words can you make from letters R C T F S?

1. CFTR - Definition of CFTR

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter R and unscrambling ctfs
2) Removing the letter C and unscrambling rtfs
3) Removing the letter T and unscrambling rcfs
4) Removing the letter F and unscrambling rcts
5) Removing the letter S and unscrambling rctf

More anagrams containing the letters R C T F S
rctsf rfcst scftr fstcr