13-Letter Words Matching _I________O__

There are 56 13-letter words that match _I________O__. 31 are common words, such as BIOTECHNOLOGY and CIRCUMCISIONS. A rarer one is VINIFICATIONS. In this set, S is the most frequent open letter (55 words). 14 words contain a doubled letter.

Full list 56

Common words

biotechnologycircumcisionscivilisationscivilizationsdilapidationsdisaffectionsdiscontinuousdisharmoniousdisinfectionsdisinflationsdispensationsdisquisitions
biotechnologycircumcisionscivilisationscivilizationsdilapidationsdisaffectionsdiscontinuousdisharmoniousdisinfectionsdisinflationsdispensationsdisquisitionsdissertationsdissimulatorsdissociationsdistillationsdistributionsfibrillationsfinalizationsliquefactionsminimizationsministrationsmiscellaneousmisdirectionsmisquotationsmisunderstoodpigmentationsvilificationsvitalizationsvitrifactionsvituperationsbignoniaceousdichlamydeousdiencephalonsdigitizationsdisseminatorsdivaricationslissotrichousnickeliferousvivificationsbibliolatrouscircumfusionscitificationsdiathermanousdimerizationsdisclamationsdispossessorsdissimilatoryfiberizationslithotriptorsmicrophyllousmiseducationsnidificationssigmoidoscopyvigintillionsvinifications

About this list

Words
56 (31 common words)
Common example
biotechnology
Rare example
vinifications
Doubled letters
14
Ending in S
52
Most frequent letter
S (55)

Questions

How many 13-letter words matching _i________o__ are there?

56. 31 of them are common words.

What is a common example?

BIOTECHNOLOGY is among the common words in this set.