12-Letter Words Matching A_____R_____

There are 61 12-letter words that match A_____R_____. 23 are common words, such as ACCELERATING and ACCELERATION. A rarer one is ASYNCHRONIES. In this set, I is the most frequent open letter (51 words). 25 words contain a doubled letter.

Full list 61

Common words

acceleratingaccelerationacceleratorsadulteratingadulterationadulteressesalliteratingalliterationalliterativeamateurishlyamelioratingamelioration
acceleratingaccelerationacceleratorsadulteratingadulterationadulteressesalliteratingalliterationalliterativeamateurishlyamelioratingameliorationameliorativeancestressesangularitiesantiaircraftantiparticleappropriatedappropriatesappropriatorasseveratingasseverationasynchronousaccelerandosaccelerativeaddlebrainedallegorizingallomorphismambiversionsamphitropousanisotropiesantemeridianantinarcoticantiparallelantiperiodicantipyreticsantistrophesasynchronismautomorphismaccoutrementadulteratorsadulterouslyagroforesteragroforestryallegorisingallegorizersallopurinolsamelioratorsamelioratoryamphibrachicangiographicanisotropismantiburglaryantiheroinesantipiraciesantistrophicantithrombinaortographicappropriableasseverativeasynchronies

About this list

Words
61 (23 common words)
Common example
accelerating
Rare example
asynchronies
Doubled letters
25
Ending in S
19
Most frequent letter
I (51)

Questions

How many 12-letter words matching a_____r_____ are there?

61. 23 of them are common words.

What is a common example?

ACCELERATING is among the common words in this set.