Unscramble Irsfn

What is the meaning of word irsfn unscrambled?

What 5 letter words can be made from letters I R S F N:

1. firns - Definition of firns

Make more words by adding or removing letters

How many 4 letter words can you make from letters I R S F N?

1. fins - Definition of fins

2. firn - Definition of firn

3. firs - Definition of firs

4. rifs - Definition of rifs

5. rins - Definition of rins

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling rsfn
2) Removing the letter R and unscrambling isfn
3) Removing the letter S and unscrambling irfn
4) Removing the letter F and unscrambling irsn
5) Removing the letter N and unscrambling irsf

More anagrams containing the letters I R S F N
irsnf isfnr srinf fsrin