12-Letter Words Matching A_________I_

There are 71 12-letter words that match A_________I_. 9 are common words, such as ALPHANUMERIC and ANTAGONISTIC. A rarer one is AXISYMMETRIC. In this set, C is the most frequent open letter (56 words). 6 words contain a doubled letter.

Full list 71

Common words

alphanumericantagonisticanticyclonicantipatheticappendicitisaristocraticarthroscopicasymptomaticavitaminosisabsolutisticachlorhydriaaeromechanic
alphanumericantagonisticanticyclonicantipatheticappendicitisaristocraticarthroscopicasymptomaticavitaminosisabsolutisticachlorhydriaaeromechanicaeroneurosisagamogenesisalexipharmicallelopathicamphidiploidanagrammaticanalphabeticanamorphosisanastigmaticangiogenesisanthelminticantiallergicanticathexisantimagneticantinarcoticantiperiodicantirachiticapochromaticapothegmaticarchaeologicarchipelagicattorneyshipautodidacticautohypnosisachlorhydricactinometricaeromagneticailurophobiaamperometricamphibrachicamphictyonicamphisbaenicanaerobiosisanaphylacticanaplasmosisandrocentricandrogenesisandrogeneticanencephalicangiographicanorexigenicanorthositicantiacademicantidiabeticantidogmaticantieconomicantientropicantiglobulinantihystericantileukemicantipruriticantiromanticantistrophicantithrombinaortographicarmamentariaautohypnoticavitaminoticaxisymmetric

About this list

Words
71 (9 common words)
Common example
alphanumeric
Rare example
axisymmetric
Doubled letters
6
Ending in S
11
Most frequent letter
C (56)

Questions

How many 12-letter words matching a_________i_ are there?

71. 9 of them are common words.

What is a common example?

ALPHANUMERIC is among the common words in this set.