13-Letter Words Matching A__U_________

There are 20 13-letter words that match A__U_________. 14 are common words, such as ACCULTURATING and ACCULTURATION. A rarer one is AILUROPHOBIAS. In this set, I is the most frequent open letter (17 words). 9 words contain a doubled letter.

Full list 20

acculturatingacculturationaccumulationsacquaintancesacquiescencesacquiescentlyacquisitivelyactualizationadjudicationsannunciationsappurtenancesarduousnessesargumentationargumentativeacculturativeassurednessesaccustomationacquisitionaladjustabilityailurophobias

About this list

Words
20 (14 common words)
Common example
acculturating
Rare example
ailurophobias
Doubled letters
9
Ending in S
9
Most frequent letter
I (17)

Questions

How many 13-letter words matching a__u_________ are there?

20. 14 of them are common words.

What is a common example?

ACCULTURATING is among the common words in this set.