Unscramble Irnrf

What is the meaning of word irnrf unscrambled?

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

Make more words by adding or removing letters

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

1. firn - Definition of firn

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling rnrf
2) Removing the letter R and unscrambling inrf
3) Removing the letter N and unscrambling irrf
4) Removing the letter R and unscrambling irnf
5) Removing the letter F and unscrambling irnr

More anagrams containing the letters I R N R F
irrfn irrnf inrfr nfirr