15-Letter Words Matching _______E_____O_

There are 14 15-letter words that match _______E_____O_. 5 are common words, such as EXPERIMENTATION and INCOMPREHENSION. A rarer one is THERMOREGULATOR. In this set, N is the most frequent open letter (13 words). 5 words contain a doubled letter.

Full list 14

experimentationincomprehensioninstrumentationmisapprehensionsupplementationproconservationreafforestationcomplementationnonconservationoverexpectationprecancellationseptendecillionsuperphenomenonthermoregulator

About this list

Words
14 (5 common words)
Common example
experimentation
Rare example
thermoregulator
Doubled letters
5
Ending in S
0
Most frequent letter
N (13)

Questions

How many 15-letter words matching _______e_____o_ are there?

14. 5 of them are common words.

What is a common example?

EXPERIMENTATION is among the common words in this set.