15-Letter Words Matching E_____O________

There are 35 15-letter words that match E_____O________. 3 are common words, such as EGREGIOUSNESSES and ELECTROMAGNETIC. A rarer one is EXTERIORIZATION. In this set, R is the most frequent open letter (35 words). 4 words contain a doubled letter.

Full list 35

Common words

egregiousnesseselectromagneticextemporizationelectrodynamicselectroanalysiselectrochemicalelectrodialysiselectrokineticselectronarcosiselectronegativeelectrophoreseselectrophoresis
egregiousnesseselectromagneticextemporizationelectrodynamicselectroanalysiselectrochemicalelectrodialysiselectrokineticselectronarcosiselectronegativeelectrophoreseselectrophoresiselectrophoreticelectropositiveelectrotechnicselectrothermicserroneousnessesextemporarinesselectroacousticelectroanalyseselectrodepositselectrodialyseselectrodialyticelectrofishingselectromyogramselectromyographelectrophoresedelectrosurgicalelectrowinningsenantiomorphismenantiomorphousepichlorohydrinerythropoietinsextemporisationexteriorization

About this list

Words
35 (3 common words)
Common example
egregiousnesses
Rare example
exteriorization
Doubled letters
4
Ending in S
20
Most frequent letter
R (35)

Questions

How many 15-letter words matching e_____o________ are there?

35. 3 of them are common words.

What is a common example?

EGREGIOUSNESSES is among the common words in this set.