Words that contain 'nf' and end in 'er'

What's the highest scoring word you can play in Scrabble ?
For a score of 14 points, you are able to play 'confeder'.

In total, how many words are available using this combination of letters?
There are 93 words possible for any word that has 'nf' in and ends with 'er'.

What is an unusual word that has 'nf' in and ends with 'er'?
Standing as the most interesting word on this page is 'confesser'. The definition of 'confesser' is as follows: "One who makes a confession.".

What's the most common word on this page?
We can verify that 'confer' is the 10224^th most common word.

What's the longest word you can assemble from this list?
The largest word one can construct from this list is 'balloonflower', and it is made up of 13 characters.