12-Letter Words Matching _____S_____R

There are 30 12-letter words that match _____S_____R. 8 are common words, such as COMMISSIONER and DEMONSTRATOR. A rarer one is VISCOSIMETER. In this set, E is the most frequent open letter (29 words). 12 words contain a doubled letter.

Full list 30

Common words

commissionerdemonstratorimpersonatorinterstellarschussboomersharpshootersportscastersportswritercandystripercommiseratorconcessionerdesensitizer
commissionerdemonstratorimpersonatorinterstellarschussboomersharpshootersportscastersportswritercandystripercommiseratorconcessionerdesensitizerdisassemblerextensometergrandstanderorchestratorremonstratorscrimshandersequestratortrainspotterunderstanderassassinatorbrainstormerdispossessorgreenskeepernonresponderorchestratersceneshiftersheepshearerviscosimeter

About this list

Words
30 (8 common words)
Common example
commissioner
Rare example
viscosimeter
Doubled letters
12
Ending in S
0
Most frequent letter
E (29)

Questions

How many 12-letter words matching _____s_____r are there?

30. 8 of them are common words.

What is a common example?

COMMISSIONER is among the common words in this set.