12-Letter Words Containing NNA

There are 13 12-letter words that contain NNA. 4 are common words, such as INNATENESSES and LEGIONNAIRES. A rarer one is TRIPINNATELY. In this set, I is the most frequent open letter (11 words). 13 words contain a doubled letter.

Full list 13

innatenesseslegionnairesmillionnairenonnarcoticscachinnatingcachinnationconnaturallycannabinoidsmegatonnagesnonnarrativenonnationalsperennationstripinnately

About this list

Words
13 (4 common words)
Common example
innatenesses
Rare example
tripinnately
Doubled letters
13
Ending in S
7
Most frequent letter
I (11)

Questions

How many 12-letter words containing nna are there?

13. 4 of them are common words.

What is a common example?

INNATENESSES is among the common words in this set.