10-Letter Words Matching ____R____R

There are 100 10-letter words that match ____R____R. 40 are common words, such as ADVERTISER and ALTERNATOR. A rarer one is UNDERSTEER. In this set, E is the most frequent open letter (92 words). 15 words contain a doubled letter.

Full list 100

Common words

advertiseralternatorbiographercompressorcontractorcontrollerdaydreamerdescriptordeterminerdiscreetereyedropperforerunner
advertiseralternatorbiographercompressorcontractorcontrollerdaydreamerdescriptordeterminerdiscreetereyedropperforerunnerfundraisergeographerhibernatoricebreakerinstructorinterloperjawbreakerlawbreakermodernizernondrinkernutcrackerprogrammerproprietorprotractorrailroaderrestrainerroadrunnersuperpowersupervisorsuppressortiebreakertubercularundercoverundertakerunderwaterunworthierwatercolorwaterpowerabstracterarteriolarbaserunnerbogtrotterbushrangercoparcenercopyreaderdemarcatordestructordispraiserdistrainerepigrapherexpurgatorextirpatorflourishergentrifierhypermeterhypervisorimportunerintercederinterfererinterlunarinterposerintervenerintervenornewsreaderobjurgatorobstructerobstructorplayreaderprocreatorshearwatersuperaltarsuperlinersuperorderunderfloorunderlayerunderminerabstractorbankrollercodirectorconfronterdistrainorelutriatorfluorescerinterfiberinterlayerinterlinermaltreaternonbreederpapermakerpropraetorquadrumvirquarrellerresurfacerreverencersubtractersuperlunarsupersederundersteer

About this list

Words
100 (40 common words)
Common example
advertiser
Rare example
understeer
Doubled letters
15
Ending in S
0
Most frequent letter
E (92)

Questions

How many 10-letter words matching ____r____r are there?

100. 40 of them are common words.

What is a common example?

ADVERTISER is among the common words in this set.