11-Letter Words Matching ____KN_____

There are 15 11-letter words that match ____KN_____. 14 are common words, such as BLACKNESSES and BLANKNESSES. A rarer one is DOORKNOCKER. In this set, E is the most frequent open letter (14 words). 13 words contain a doubled letter.

Full list 15

blacknessesblanknessesbleaknessesbrisknessesforeknowingfranknessesjackknifingquicknessesslacknessessleeknessesslicknessesstarknessesthicknessesunbeknownstdoorknocker

About this list

Words
15 (14 common words)
Common example
blacknesses
Rare example
doorknocker
Doubled letters
13
Ending in S
11
Most frequent letter
E (14)

Questions

How many 11-letter words matching ____kn_____ are there?

15. 14 of them are common words.

What is a common example?

BLACKNESSES is among the common words in this set.