12-Letter Words Matching C__________M

There are 13 12-letter words that match C__________M. 4 are common words, such as CHARLATANISM and COLLECTIVISM. A rarer one is CRYPTORCHISM. In this set, O is the most frequent open letter (11 words). 6 words contain a doubled letter.

Full list 13

charlatanismcollectivismconservatismcounterclaimcheckerbloomchemotropismchromaticismchromatogramclassicalismcommensalismcladophyllumconnubialismcryptorchism

About this list

Words
13 (4 common words)
Common example
charlatanism
Rare example
cryptorchism
Doubled letters
6
Ending in S
0
Most frequent letter
O (11)

Questions

How many 12-letter words matching c__________m are there?

13. 4 of them are common words.

What is a common example?

CHARLATANISM is among the common words in this set.