12-Letter Words Matching ____O_____R_

There are 51 12-letter words that match ____O_____R_. 16 are common words, such as BURGOMASTERS and CONNOISSEURS. A rarer one is RADIOTRACERS. In this set, E is the most frequent open letter (45 words). 8 words contain a doubled letter.

Full list 51

Common words

burgomastersconnoisseursdiscomfiturediscomposureembroiderersintroductorymicrobrewerymicrosurgerynecromancersneurosurgerypetrodollarsphilosophers
burgomastersconnoisseursdiscomfiturediscomposureembroiderersintroductorymicrobrewerymicrosurgerynecromancersneurosurgerypetrodollarsphilosophersphotocopiersteetotallersthoroughfaretrigonometrychiromancerscoprocessorsheliogravureorthodonturephotogravureprotohistoryprovocateursradiosurgerysiphonophorethoroughwortwithoutdoorsazotobactersbuttonholerschemosurgerychocolatiersdiscouragersethnohistoryhydrometeorsintromittersmicrobrewersmicroculturemicrofilmersmicroreadersneurosensorynoncomposersnonconsumersnonvoluntaryorthocentersperformatorypersonifiersphotosetterspigeonholersprecomputersprotomartyrsradiotracers

About this list

Words
51 (16 common words)
Common example
burgomasters
Rare example
radiotracers
Doubled letters
8
Ending in S
30
Most frequent letter
E (45)

Questions

How many 12-letter words matching ____o_____r_ are there?

51. 16 of them are common words.

What is a common example?

BURGOMASTERS is among the common words in this set.