12-Letter Words Matching __A_____H___

There are 18 12-letter words that match __A_____H___. 5 are common words, such as BRAINWASHING and GRANDFATHERS. A rarer one is TRAINEESHIPS. In this set, T is the most frequent open letter (15 words). 1 words contain a doubled letter.

Full list 18

brainwashinggrandfathersgrandmothersgrandnephewsneanderthalsanacoluthiasanacoluthonsblastospherechalcanthitediastrophismdiazomethanegnatcatchersheadteachersbrainwashersphanerophytepraetorshipstracheophytetraineeships

About this list

Words
18 (5 common words)
Common example
brainwashing
Rare example
traineeships
Doubled letters
1
Ending in S
11
Most frequent letter
T (15)

Questions

How many 12-letter words matching __a_____h___ are there?

18. 5 of them are common words.

What is a common example?

BRAINWASHING is among the common words in this set.