15-Letter Words Matching ____O______E___

There are 18 15-letter words that match ____O______E___. 3 are common words, such as ACKNOWLEDGMENTS and DISCONTENTMENTS. A rarer one is VIDEOCONFERENCE. 2 words contain a doubled letter.

Full list 18

acknowledgmentsdiscontentmentsdiscouragementsconvolvulaceousdisconcertmentsgluconeogenesisglyconeogenesismalnourishmentsmicromillimeterradiomicrometerferromanganesesgluconeogenesesmicrophotometermicrophotometryphytopathogenicsteroidogenesessteroidogenesisvideoconference

About this list

Words
18 (3 common words)
Common example
acknowledgments
Rare example
videoconference
Doubled letters
2
Ending in S
12

Questions

How many 15-letter words matching ____o______e___ are there?

18. 3 of them are common words.

What is a common example?

ACKNOWLEDGMENTS is among the common words in this set.