Unscramble Fillna

What is the meaning of word fillna unscrambled?

What 6 letter words can be made from letters F I L L N A:

1. infall - Definition of infall

Make more words by adding or removing letters

How many 5 letter words can you make from letters F I L L N A?

1. final - Definition of final

2. flail - Definition of flail

Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter F and unscrambling illna
2) Removing the letter I and unscrambling fllna
3) Removing the letter L and unscrambling filna
4) Removing the letter L and unscrambling filna
5) Removing the letter N and unscrambling filla
6) Removing the letter A and unscrambling filln

More anagrams containing the letters F I L L N A
filnal filnla lafinl ilfanl