13-Letter Words Matching ____I_____O__

There are 56 13-letter words that match ____I_____O__. 24 are common words, such as AMELIORATIONS and ARCHIPELAGOES. A rarer one is UREDINIOSPORE. In this set, S is the most frequent open letter (49 words). 13 words contain a doubled letter.

Full list 56

Common words

ameliorationsarchipelagoescartilaginousconciliationsconfirmationsconfiscationscontinuationsdissimulatorsdistillationsfibrillationsincriminatoryinstillations
ameliorationsarchipelagoescartilaginousconciliationsconfirmationsconfiscationscontinuationsdissimulatorsdistillationsfibrillationsincriminatoryinstillationsmisdirectionsmultitudinousparticipatorsparticipatorypetrifactionsplatitudinouspredilectionspropitiationsrecriminatoryrefrigeratorstonsillectomyvitrifactionsaluminiferouscarcinomatouscartilaginoidfossiliferousgentianaceousgesticulatorygraminivoroushelminthologyjustificatoryovoviviparousprecipitatorssalpingectomytachistoscopebenzimidazolebibliolatrouscachinnationscantillationscertificatoryconsignationsdissimilatorygesticulatorsinspissationsmultibillionsmultimegatonsmultimillionsoveringeniousplenitudinouspontificatorspredigestionsrectitudinoussubbituminousurediniospore

About this list

Words
56 (24 common words)
Common example
ameliorations
Rare example
urediniospore
Doubled letters
13
Ending in S
42
Most frequent letter
S (49)

Questions

How many 13-letter words matching ____i_____o__ are there?

56. 24 of them are common words.

What is a common example?

AMELIORATIONS is among the common words in this set.