13-Letter Words Matching _____I_____I_

There are 28 13-letter words that match _____I_____I_. 4 are common words, such as ARCHBISHOPRIC and IMPERIALISTIC. A rarer one is XENODIAGNOSIS. In this set, S is the most frequent open letter (27 words). 3 words contain a doubled letter.

Full list 28

Common words

archbishopricimperialisticmaterialisticnonscientificapheliotropicassociateshipbehavioristiccouncilorshipgeoscientificillusionisticpointillisticprescientific
archbishopricimperialisticmaterialisticnonscientificapheliotropicassociateshipbehavioristiccouncilorshipgeoscientificillusionisticpointillisticprescientificprincipalshipstratigraphicbioscientificcolonialisticcontainershipequilibristicparasitologicpolycistronicradioisotopicscintigraphicserodiagnosissolicitorshipspectinomycinsteroidogenictumorigenesisxenodiagnosis

About this list

Words
28 (4 common words)
Common example
archbishopric
Rare example
xenodiagnosis
Doubled letters
3
Ending in S
3
Most frequent letter
S (27)

Questions

How many 13-letter words matching _____i_____i_ are there?

28. 4 of them are common words.

What is a common example?

ARCHBISHOPRIC is among the common words in this set.