Words that include 'nkn'

What's the highest scoring word you can play in Scrabble ?
Using this particular combination, it is possible to make 'penknife' which gets 17 points.

What is the most unique word with 'nkn' in them?
'Unknown' is definitely the most peculiar word in our list of words with 'nkn' in them. The dictionary defines it as "Not known; not apprehended. -- Un*known"ness, n. [R.] Camden.".

How many words could one put together with this combination of letters?
You can go with up to 67 words.

How many characters does the biggest word on this list contain?
The largest word is 16 letters, which is 'nonknowledgeable'.

Which word with 'nkn' in them is the most common word?
Rating as the 1875^th most common word, you will want to ensure you have 'unknown' in your arsenal.