13-Letter Words Containing ENN

There are 16 13-letter words that contain ENN. 6 are common words, such as BICENTENNIALS and DRUNKENNESSES. A rarer one is QUINQUENNIUMS. In this set, I is the most frequent open letter (13 words). 16 words contain a doubled letter.

Full list 16

bicentennialsdrunkennessesequestriennesoutspokennesstercentennialtricentennialmillennialismmillennialistpremillennialquadrenniallyquindecennialbetweennessesbimillennialspennywhistlesquinquennialsquinquenniums

About this list

Words
16 (6 common words)
Common example
bicentennials
Rare example
quinquenniums
Doubled letters
16
Ending in S
9
Most frequent letter
I (13)

Questions

How many 13-letter words containing enn are there?

16. 6 of them are common words.

What is a common example?

BICENTENNIALS is among the common words in this set.