13-Letter Words Matching ___A_____A___

There are 80 13-letter words that match ___A_____A___. 30 are common words, such as DECAFFEINATED and DECAFFEINATES. A rarer one is VOLATILIZABLE. In this set, I is the most frequent open letter (63 words). 40 words contain a doubled letter.

Full list 80

Common words

decaffeinateddecaffeinatesdisadvantageddisadvantagesdisaffiliateddisaffiliatesdisappearancedisassociateddisassociatesincapacitatedincapacitatesmetabolically
decaffeinateddecaffeinatesdisadvantageddisadvantagesdisaffiliateddisaffiliatesdisappearancedisassociateddisassociatesincapacitatedincapacitatesmetabolicallymetalanguagesnonacceptancenonadjustablenonappearancenonassignablenonattendanceparadoxicallyparaphernaliaparasiticallyrecalcitrancerecapitulatedrecapitulatesrehabilitatedrehabilitatesstrategicallyunfashionableunfashionablyunwarrantableadiabaticallyadiathermancycatalyticallycatatonicallydemagogicallydisaggregateddisambiguatedmalacostracanmetallographynonapplicableparabolicallyparalyticallyparanoiacallyparaphrasablepedagogicallypyramidicallyrecalcitrancyunfalsifiableunsatisfiableunwarrantablycatabolicallydisaffirmancedisaggregatesdisambiguatesembarrassableergastoplasmsestablishableexsanguinatedexsanguinatesmetabolizablemetachromaticmetamericallymonarchicallymutagenicallynonabsorbablenonaffiliatednonassociatedparalanguagesphragmoplastsrecalcitrantsrehabilitantsrehabilitatorscratchboardsstraightlacedsybariticallythrasonicallyunmanipulatedunsalvageablevacationlandsvolatilizable

About this list

Words
80 (30 common words)
Common example
decaffeinated
Rare example
volatilizable
Doubled letters
40
Ending in S
18
Most frequent letter
I (63)

Questions

How many 13-letter words matching ___a_____a___ are there?

80. 30 of them are common words.

What is a common example?

DECAFFEINATED is among the common words in this set.