15-Letter Words Matching ____E______L___

There are 16 15-letter words that match ____E______L___. 4 are common words, such as CONVENTIONALITY and CONVENTIONALIZE. A rarer one is SEPTENDECILLION. In this set, O is the most frequent open letter (15 words). 5 words contain a doubled letter.

Full list 16

conventionalityconventionalizeprofessionalismprofessionalizecontemptibilityconventionalismconventionalistmyelencephalonsoxytetracyclineconfessionalismconfessionalistdeuteranomaliesdeuteranomalousdisreputabilitypolyelectrolyteseptendecillion

About this list

Words
16 (4 common words)
Common example
conventionality
Rare example
septendecillion
Doubled letters
5
Ending in S
3
Most frequent letter
O (15)

Questions

How many 15-letter words matching ____e______l___ are there?

16. 4 of them are common words.

What is a common example?

CONVENTIONALITY is among the common words in this set.