14-Letter Words Matching __A_____U_____

There are 16 14-letter words that match __A_____U_____. 4 are common words, such as GRATUITOUSNESS and MEANINGFULNESS. A rarer one is UNACCULTURATED. In this set, N is the most frequent open letter (15 words). 13 words contain a doubled letter.

Full list 16

gratuitousnessmeaningfulnesspharmaceuticaltranssexualismavariciousnessflagitiousnesstraitorousnesstranssexualityunattributablediaphanousnessreattributionsscandalousnessslanderousnesstransvaluatingtransvaluationunacculturated

About this list

Words
16 (4 common words)
Common example
gratuitousness
Rare example
unacculturated
Doubled letters
13
Ending in S
9
Most frequent letter
N (15)

Questions

How many 14-letter words matching __a_____u_____ are there?

16. 4 of them are common words.

What is a common example?

GRATUITOUSNESS is among the common words in this set.