13-Letter Words Matching _____O______R

There are 27 13-letter words that match _____O______R. 10 are common words, such as BIBLIOGRAPHER and CHOREOGRAPHER. A rarer one is STEREOREGULAR. In this set, E is the most frequent open letter (27 words). 6 words contain a doubled letter.

Full list 27

Common words

bibliographerchoreographercryptographerlexicographeroceanographerpassionflowerseismographerselenographersemiconductorthermonuclearalcoholometerbiogeographer
bibliographerchoreographercryptographerlexicographeroceanographerpassionflowerseismographerselenographersemiconductorthermonuclearalcoholometerbiogeographerequimolecularglossographermonomolecularphysiographerpsychographerstationmasterzoogeographerantiforeignerconglomeratorfashionmongerinterobservernoncooperatornonprogrammerpsychobabblerstereoregular

About this list

Words
27 (10 common words)
Common example
bibliographer
Rare example
stereoregular
Doubled letters
6
Ending in S
0
Most frequent letter
E (27)

Questions

How many 13-letter words matching _____o______r are there?

27. 10 of them are common words.

What is a common example?

BIBLIOGRAPHER is among the common words in this set.