13-Letter Words Matching _____A__U____

There are 12 13-letter words that match _____A__U____. 7 are common words, such as CONTRACTUALLY and MANUFACTURERS. A rarer one is SUPERABOUNDED. In this set, A is the most frequent open letter (11 words). 4 words contain a doubled letter.

Full list 12

contractuallymanufacturersmanufacturingmetalanguagespharmaceuticssuperannuatedsuperannuatessuperannuablehyperarousalsnondiapausingparalanguagessuperabounded

About this list

Words
12 (7 common words)
Common example
contractually
Rare example
superabounded
Doubled letters
4
Ending in S
6
Most frequent letter
A (11)

Questions

How many 13-letter words matching _____a__u____ are there?

12. 7 of them are common words.

What is a common example?

CONTRACTUALLY is among the common words in this set.