13-Letter Words Matching ______A_D____

There are 21 13-letter words that match ______A_D____. 9 are common words, such as GERRYMANDERED and HAPHAZARDNESS. A rarer one is SUPERHARDENED. In this set, R is the most frequent open letter (20 words). 4 words contain a doubled letter.

Full list 21

gerrymanderedhaphazardnessorthopaedistspropagandistspropagandizedpropagandizessailboardingssnowboardingsunderhandedlyarchimandritegerrymanderersurfboardingsboulevardierscrossbandingshaphazardrieshardstandingsinterpandemicpropagandizerstickhandlersstickhandlingsuperhardened

About this list

Words
21 (9 common words)
Common example
gerrymandered
Rare example
superhardened
Doubled letters
4
Ending in S
12
Most frequent letter
R (20)

Questions

How many 13-letter words matching ______a_d____ are there?

21. 9 of them are common words.

What is a common example?

GERRYMANDERED is among the common words in this set.