13-Letter Words Matching ____O______N_

There are 150 13-letter words that match ____O______N_. 63 are common words, such as ACKNOWLEDGING and AGGLOMERATING. A rarer one is UNAPOLOGIZING. In this set, I is the most frequent open letter (138 words). 30 words contain a doubled letter.

Full list 150

Common words

acknowledgingagglomeratinganchorpersonsanthologizingappropriatingapproximatingconformationsconsolidatingcorroboratingcosmopolitansdeprogrammingdespoliations
acknowledgingagglomeratinganchorpersonsanthologizingappropriatingapproximatingconformationsconsolidatingcorroboratingcosmopolitansdeprogrammingdespoliationsdiscomfortingdisconcertingdisconnectingdiscontentingdiscontinuingdispossessingdissociationsexploitationsexpropriatingextroversionsforeordaininghaemorrhaginghydrogenatingintroductionsintrospectingintroversionslithographingmalformationsmicromanagingmimeographingmisconceivingmisconductingmisconstruingmisgovernmentmythologizingnationalizingneurosurgeonsnonconductingnonconformingpersonalizingphilodendronsphotographingphotostattingprecognitionspreconceivingpreconditionspredominatingprepossessingprolongationspronouncementproportioningratiocinatingrationalizingreinoculatingreproductionsreprogrammingretrogressingretrospectingrhododendronsthoroughgoingturbochargingachromatizingbamboozlementcarboxylatingcatholicizingdiagonalizingdichotomizingetymologizingglycoproteinshectographingheliographinghydroxylamineintrojectionsintromissionsmicronutrientnonconcurrentnonconsentingphenothiazineproboscideansprogovernmentretroflexionsretroversionssulfonmethaneaminophyllinebromocriptinebuttonhookingcannonballingchymotrypsinsconsociationscoproductionscyclodextrinscyclohexanonedaunorubicinsdiscommendingdisconfirmingetymologisingeugeosynclinefellowshipingferrosiliconsflavoproteinsglycosylatinghistoricizinghydrocrackinghydroxylatingintrogressantluteotrophinsmacronutrientmetropolitansmicrofilamentmicrographingmisconnectingnarrowcastingnationalisingnoncommitmentnonconcurringnoncontingentnongovernmentoutpopulatingoveroperatingparfocalizingpersonalisingphagocytizingphagocytosingphotoionizingphotoreducingphysostigmineprecommitmentpreconcertingpreformationspreformattingpremoisteningprenominatingpreportioningpretournamentproboscidiansradiographingradiolabelingrationalisingregionalizingrencounteringretrocessionsretrodictionssubgovernmentsubvocalizingtemporalizingtetrodotoxinsthyrotrophinsunapologizing

About this list

Words
150 (63 common words)
Common example
acknowledging
Rare example
unapologizing
Doubled letters
30
Ending in S
38
Most frequent letter
I (138)

Questions

How many 13-letter words matching ____o______n_ are there?

150. 63 of them are common words.

What is a common example?

ACKNOWLEDGING is among the common words in this set.