15-Letter Words Matching ______O_R______

There are 26 15-letter words that match ______O_R______. 7 are common words, such as AUTOBIOGRAPHERS and AUTOBIOGRAPHIES. A rarer one is SPECTROGRAPHIES. In this set, I is the most frequent open letter (25 words). 10 words contain a doubled letter.

Full list 26

Common words

autobiographersautobiographiesinappropriatelyphotojournalismphotojournalistrephotographingtransmogrifyinghypercorrectionphosphocreatinephosphoproteinsantiprogressiveapolipoproteins
autobiographersautobiographiesinappropriatelyphotojournalismphotojournalistrephotographingtransmogrifyinghypercorrectionphosphocreatinephosphoproteinsantiprogressiveapolipoproteinsarteriographieschondrocraniumscorticotrophinsintercorrelatedintercorrelatesmetallographersmetallographiesoscillographiesoverprogrammingpantisocraticalpantisocratistsprosopographiesreappropriatingspectrographies

About this list

Words
26 (7 common words)
Common example
autobiographers
Rare example
spectrographies
Doubled letters
10
Ending in S
14
Most frequent letter
I (25)

Questions

How many 15-letter words matching ______o_r______ are there?

26. 7 of them are common words.

What is a common example?

AUTOBIOGRAPHERS is among the common words in this set.