15-Letter Words Matching _____A______I__

There are 60 15-letter words that match _____A______I__. 16 are common words, such as BURGLARPROOFING and CONFRATERNITIES. A rarer one is UNDERACTIVITIES. In this set, T is the most frequent open letter (55 words). 16 words contain a doubled letter.

Full list 60

Common words

burglarproofingconfraternitiescrystallizationhyperactivitiesmaintainabilitymarriageabilitymicroaggressionnonavailabilityophthalmologiesophthalmologistparliamentarianphantasmagorias
burglarproofingconfraternitiescrystallizationhyperactivitiesmaintainabilitymarriageabilitymicroaggressionnonavailabilityophthalmologiesophthalmologistparliamentarianphantasmagoriasprocrastinatingprocrastinationradioactivitiesstandardizationanagrammatizingantinationalistapproachabilitycontractibilitycontractilitiescontradictorilycontravallationmerchantabilitymetamathematicsmischaracterizeoverfamiliarityprogrammabilityprostatectomiesunassailabilityunattainabilityunmanageabilityadrenalectomiesantimaterialismantimaterialistantirationalismantirationalistantirationalitybioavailabilitybiostatisticiancontradictoriescrystallinitiesdistractibilityepigrammatizingheadmastershipshyperaesthesiashyperaggressivehypomagnesemiasineffaceabilitymistranscribingnonflammabilitynonquantitativenonstationariespharmacognosiespostmastershipspostvaccinationretroactivitiessubstantivizingsuperactivitiesunderactivities

About this list

Words
60 (16 common words)
Common example
burglarproofing
Rare example
underactivities
Doubled letters
16
Ending in S
20
Most frequent letter
T (55)

Questions

How many 15-letter words matching _____a______i__ are there?

60. 16 of them are common words.

What is a common example?

BURGLARPROOFING is among the common words in this set.