15-Letter Words Matching ____A_________S

There are 120 15-letter words that match ____A_________S. 31 are common words, such as AGGRANDIZEMENTS and AROMATHERAPISTS. A rarer one is WELTANSCHAUUNGS. In this set, E is the most frequent open letter (106 words). 49 words contain a doubled letter.

Full list 120

Common words

aggrandizementsaromatherapistsbastardizationscharacteristicscombativenessescomparabilitiescompatibilitiesconsanguinitiesdastardlinessesdistastefulnessfundamentalismsfundamentalists
aggrandizementsaromatherapistsbastardizationscharacteristicscombativenessescomparabilitiescompatibilitiesconsanguinitiesdastardlinessesdistastefulnessfundamentalismsfundamentalistshaphazardnessesimitativenessesimplacabilitiesinfrastructureslucrativenessesmiscalculationsniggardlinessesnonparticipantsoffhandednessespervasivenessesphilanthropistsprefabricationssensationalismssensationalistssensationalizessqueamishnessestalkativenessestentativenessesunhealthinessesanomalousnessesarchaeopteryxesbarbarousnessesdermatoglyphicsdisparatenesseseducationalistsfantasticalnessimpracticalnessinflammablenessintractablenessintransigenciesmagnanimousnessmercaptopurinesretransmissionssarraceniaceoustrypanosomiasisunseaworthinessanfractuositiesantialcoholismsantiallergenicsantiarrhythmicsapocalypticismsappealabilitiesbenzanthracenesbidialectalismsbougainvillaeascephalothoracescephalothoraxescollateralitiescomparativenesscomradelinessesconnaturalitiescontainerboardscotransductionsdefeasibilitiesdictatorialnessecocatastrophesevocativenessesfantasticationsglutaraldehydesinfeasibilitiesinstantaneitiesintransigeancesleukaemogenesesleukaemogenesisnonbarbituratesnonrandomnessesnormativenessesoperationalismsoperationalistsoperativenessesoveraccentuatesoveradjustmentsoverarticulatesoverassessmentspermanentnessesphilanthropoidsphthalocyaninespinealectomizespolyacrylamidespostadolescentspremanufacturesprematurenessesrefractometriesrefrangiblenessrepeatabilitiessacramentalismssacramentalistssensationalisessomnambulationssporangiophoresspreadabilitiessympathectomiestetragrammatonsthalassocraciestrihalomethanestrypanosomiasesultrafastidiousultramicrotomesultramodernistsultramontanismsultraprecisionsultrastructuresultravirilitiesunguardednessesupgradabilitiesversatilenesseswarrantablenessweltanschauungs

About this list

Words
120 (31 common words)
Common example
aggrandizements
Rare example
weltanschauungs
Doubled letters
49
Ending in S
120
Most frequent letter
E (106)

Questions

How many 15-letter words matching ____a_________s are there?

120. 31 of them are common words.

What is a common example?

AGGRANDIZEMENTS is among the common words in this set.