15-Letter Words Matching ____M_________S

There are 72 15-letter words that match ____M_________S. 13 are common words, such as ACCOMPLISHMENTS and ACRIMONIOUSNESS. A rarer one is ULTIMOGENITURES. In this set, I is the most frequent open letter (65 words). 20 words contain a doubled letter.

Full list 72

Common words

accomplishmentsacrimoniousnessceremoniousnessdehumanizationsdisembarkationsdisembowelmentspharmaceuticalspharmacologistspolymerizationsrecommencementsrecommendationsstigmatizations
accomplishmentsacrimoniousnessceremoniousnessdehumanizationsdisembarkationsdisembowelmentspharmaceuticalspharmacologistspolymerizationsrecommencementsrecommendationsstigmatizationsunfamiliaritiesephemeralnessesextemporarinesshamamelidaceousignominiousnessindomitablenessinhomogeneitiesintemperatenessmetamathematicspneumonectomiesschematizationsthromboplastinsantimanagementsantimetabolitesantimilitarismsantimilitaristsantimonarchistsantimonopolistsautomatizationsaxiomatisationsaxiomatizationsbituminizationscytomegalovirusdecimalizationsdecompensationsdefeminizationsdisambiguationsdolomitizationsdreamlessnessesendometriosisesestimablenessesexcommunicatorsfragmentarinessgrammaticalnessheadmastershipsholometabolismshypomagnesemiasidiomaticnessesillimitablenessmonumentalitiesnonimplicationsnonimportationsnovemdecillionsopenmouthednessovermedicationsparamyxovirusespharmacognosiespolymerisationspostmastershipsrheumatologistsrudimentarinesssedimentologiesspermatogenesesspermatogenesisthermalizationsthermojunctionsthermoreceptorsthermoregulatestraumatizationsultimogenitures

About this list

Words
72 (13 common words)
Common example
accomplishments
Rare example
ultimogenitures
Doubled letters
20
Ending in S
72
Most frequent letter
I (65)

Questions

How many 15-letter words matching ____m_________s are there?

72. 13 of them are common words.

What is a common example?

ACCOMPLISHMENTS is among the common words in this set.