12-Letter Words Matching _______RN___

There are 20 12-letter words that match _______RN___. 4 are common words, such as AFTERBURNERS and DEBONAIRNESS. A rarer one is REPATTERNING. In this set, E is the most frequent open letter (20 words). 10 words contain a doubled letter.

Full list 20

afterburnersdebonairnessmisgoverningtogethernessafterburningglobularnessheartburningimpropernesssempiternitysingularnesssinisternesssubalternateundiscerningwhatshernamecircularnesscomputerniksfamiliarnessoutsidernessoverlearningrepatterning

About this list

Words
20 (4 common words)
Common example
afterburners
Rare example
repatterning
Doubled letters
10
Ending in S
11
Most frequent letter
E (20)

Questions

How many 12-letter words matching _______rn___ are there?

20. 4 of them are common words.

What is a common example?

AFTERBURNERS is among the common words in this set.