14-Letter Words Matching ________O_R___

There are 23 14-letter words that match ________O_R___. 2 are common words, such as ARCHBISHOPRICS and PARALLELOGRAMS. A rarer one is WEATHERBOARDED. In this set, A is the most frequent open letter (22 words). 1 words contain a doubled letter.

Full list 23

archbishopricsparallelogramsarchdeaconriesautoradiographbarometrographencephalogramsencephalographmicrobarographmyocardiographroentgenogramsroentgenographtelephotographultrasonographautoradiogramscholangiogramsinterferogramsneuroendocrinephotoautotrophplethysmogramsplethysmographradioautographstonemasonriesweatherboarded

About this list

Words
23 (2 common words)
Common example
archbishoprics
Rare example
weatherboarded
Doubled letters
1
Ending in S
10
Most frequent letter
A (22)

Questions

How many 14-letter words matching ________o_r___ are there?

23. 2 of them are common words.

What is a common example?

ARCHBISHOPRICS is among the common words in this set.