Unscramble Onfsr

What is the meaning of word onfsr unscrambled?

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

1. frons - Definition of frons

Make more words by adding or removing letters

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

1. fons - Definition of fons

2. sorn - Definition of sorn

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter O and unscrambling nfsr
2) Removing the letter N and unscrambling ofsr
3) Removing the letter F and unscrambling onsr
4) Removing the letter S and unscrambling onfr
5) Removing the letter R and unscrambling onfs

More anagrams containing the letters O N F S R
onrfs onrsf nfrso fnors