Words that have 'c' as the third letter and 'n' as fifth letter

Which word where the third letter is 'c' and fifth letter is 'n' is the most popular word?
'Second' is the most well-known word from this where the third letter is 'c' and fifth letter is 'n', ranked 432^nd most common word.

Is there an example word from this page which might be considered as unique?
Undoubtedly one of the most interesting words from this list of words where the 3rd letter is 'c' and 5th letter is 'n' is 'reconnaissance'. 'Reconnaissance' is defined as "The act of reconnoitering; preliminary examination or survey. Specifically: (a) (Geol.) An examination or survey of a region in reference to its general geological character. (B) (Engin.) An examination of a region as to its general natural features, preparatory to a more particular survey for the purposes of triangulation,...", according to the dictionary.

How many characters are in the largest word on this list?
'Uncontemporaneousness' is made up of 21 letters, and is the biggest word one can make from the combination searched for.

What is the max number of words one can make using this combination of letters?
There are up to a maximum of 1,997 entries which cover all variations.

What's the highest possible score you can get in Scrabble using this list of words where 'c' is the third letter and 'n' is the fifth letter?
Since there are heaps of words to choose from, we would suggest going for 'biconvex' which scores 22 points.