12-Letter Words Matching ______E____R

There are 21 12-letter words that match ______E____R. 5 are common words, such as ALPHABETIZER and MISDEMEANOUR. A rarer one is NONMOLECULAR. 4 words contain a doubled letter.

Full list 21

alphabetizermisdemeanourprimogenitorrefrigeratortroublemakercommiseratordemagnetizerdisassemblerfrontbencherhypothesizerincarceratorproliferatorreverberatorsubmoleculartrimolecularantipredatorbiomolecularhyperreactorhypothecatorintermeddlernonmolecular

About this list

Words
21 (5 common words)
Common example
alphabetizer
Rare example
nonmolecular
Doubled letters
4
Ending in S
0

Questions

How many 12-letter words matching ______e____r are there?

21. 5 of them are common words.

What is a common example?

ALPHABETIZER is among the common words in this set.