Words that start with 'f' and contain 'ni'

Is there an example of a particular word from this page which might be considered as unusual in any respect?
An example of a strange word from this list goes to 'factionist'. The dictionary defines it as "One who promotes faction.".

How many viable words can you put together using the combination searched for?
It is possible to derive 400 words with the letter combination you asked for.

How many characters does the biggest word on this page contain?
'Ferrihydrocyanic' contains 16 letters, and is the longest word possible to make from the combination searched for.

What's the most common word on this page?
There's 'finished', which ranks as the 1464^th most common word.

In Scrabble, what's the most points you can get using words that start with 'f' and include 'ni'?
Given there are a considerable 400 entries, you may want to pick 'feminize' scoring 22 points.