13-Letter Words Matching ________R_N__

There are 52 13-letter words that match ________R_N__. 19 are common words, such as CHEESEPARINGS and CHILDBEARINGS. A rarer one is TUBOCURARINES. In this set, E is the most frequent open letter (45 words). 16 words contain a doubled letter.

Full list 52

Common words

cheeseparingschildbearingscircumferencecrosscurrentsdisappearancekindergartnernonappearancenonoccurrencephilanderingspreponderanceprofiteeringsprogesterones
cheeseparingschildbearingscircumferencecrosscurrentsdisappearancekindergartnernonappearancenonoccurrencephilanderingspreponderanceprofiteeringsprogesteronesracketeeringsrecalcitranceschizophreniaschizophrenictestosteronesundercurrentswarmongeringsandrosteronesantineutrinosblackcurrantsisoelectroniclamellibranchmarsipobranchrecalcitrancysubconferenceadministrantsazathioprinesbenzoapyreneschondrocraniaconcelebrantscountertrendscyclosporinescytomembranesinterneuronalisoproterenolmulticurrencynonconferencenonelectronicnonimmigrantsopisthobranchorienteeringsphenanthrenesphotocurrentspolycistronicpreponderancyrecalcitrantsschizophrenessonneteeringssupercurrentstubocurarines

About this list

Words
52 (19 common words)
Common example
cheeseparings
Rare example
tubocurarines
Doubled letters
16
Ending in S
29
Most frequent letter
E (45)

Questions

How many 13-letter words matching ________r_n__ are there?

52. 19 of them are common words.

What is a common example?

CHEESEPARINGS is among the common words in this set.