12-Letter Words Matching ____O_____N_

There are 170 12-letter words that match ____O_____N_. 71 are common words, such as APPROBATIONS and BUTTONHOLING. A rarer one is VACUOLATIONS. In this set, I is the most frequent open letter (145 words). 34 words contain a doubled letter.

Full list 170

Common words

approbationsbuttonholingcarbonationscollocationscompositionsconnotationsconsolationsconvocationsconvolutionscorporationscosponsoringdeprograming
approbationsbuttonholingcarbonationscollocationscompositionsconnotationsconsolationsconvocationsconvolutionscorporationscosponsoringdeprogramingdiscolouringdiscomfitingdiscommodingdiscomposingdiscouragingdisgorgementdislocationsdispositionsdissociatingdissolutionsefflorescentelaborationsembrocationsembroideringencroachmentevaporationsexplorationsglamourizinghaemoglobinshydrocarbonshydroplaninginflorescentmeliorationsmicrofilmingmisgoverningnoncombatantnoncompetingnoncomplyingnoncorrodingnonpollutingpercolationsperforationspersonifyingphotocopyingphotostatingpigeonholingpremonitionspreponderantprepositionspropositionsprorogationsprovocationsradiocarbonsreprocessingreprogramingrestorationsretrofittingretrogradingrhetoriciansshadowboxingsilhouettingskyrocketingsubcontinentsubtotallingsuffocationssuppositionssyncopationstestosteronewarmongeringanacoluthonsandrosteroneballottementbenzophenonebipropellantchiropteranscondonationsconsociatingcrocodilianscyanohydrinscyclopentanecyclopropanecyclosporinecyclostylingdiazomethanedisforestingdislodgementefflorescinghydroquinoneintrojectinglactoflavinsmalpositionsmicroelementnitrobenzenenoncompliantorthopteransphotocurrentphytohormoneradioelementradiolariansreprobationsschoolfriendsemioticiansunprotestingalcyonariansaminopterinsamylopectinsangiotensinsanthocyaninsbenzoapyrenecarbonadoingchylomicronscoevolutionscoleopteranscommodifyingcoprocessingctenophoranscycloolefinsdeflorationsdisbowellingenamorationsfibronectinshaptoglobinsintromittentintromittingintrovertingluteotropinsmicrobrewingmiscomputingmisfocussingmislocationsmispositionsneurohormoneneuropteransnitromethanenoncongruentnonconsumingnonsolutionsoutcompetingoverornamentovipositionspersonationsphotomappingphotosettingphycocyaninsphytoalexinsplecopteransprecomputingprefocussingpremodifyingpremonishingprenotifyingprologuizingpropoxypheneprotocollingprotonationsreprovisionsretroactionsretrodictingschnorkelingsubcomponentsubrogationssulfonationsteetotallingthoroughpinsthyrotropinstropomyosinsunstopperingvacuolations

About this list

Words
170 (71 common words)
Common example
approbations
Rare example
vacuolations
Doubled letters
34
Ending in S
76
Most frequent letter
I (145)

Questions

How many 12-letter words matching ____o_____n_ are there?

170. 71 of them are common words.

What is a common example?

APPROBATIONS is among the common words in this set.