15-Letter Words Matching E_____I________

There are 31 15-letter words that match E_____I________. 14 are common words, such as EFFECTIVENESSES and ELECTRIFICATION. A rarer one is EXTENSIBILITIES. In this set, S is the most frequent open letter (27 words). 17 words contain a doubled letter.

Full list 31

Common words

effectivenesseselectrificationendocrinologiesendocrinologistepidemiologistseuphemisticallyexclusivenessesexcursivenessesexemplificationexpansivenessesexpensivenessesexplosivenesses
effectivenesseselectrificationendocrinologiesendocrinologistepidemiologistseuphemisticallyexclusivenessesexcursivenessesexemplificationexpansivenessesexpensivenessesexplosivenessesexquisitenessesextensivenessesecclesiasticismeducationalistsepidemiologicalessentialnessesexcessivenessesexemplificativeextralinguisticeasygoingnessesecclesiologicalecclesiologistsethnohistoriansethnohistoricalevocativenessesexceptionalismsexceptionalnessexpansibilitiesextensibilities

About this list

Words
31 (14 common words)
Common example
effectivenesses
Rare example
extensibilities
Doubled letters
17
Ending in S
21
Most frequent letter
S (27)

Questions

How many 15-letter words matching e_____i________ are there?

31. 14 of them are common words.

What is a common example?

EFFECTIVENESSES is among the common words in this set.