15-Letter Words Matching ___C_A_________

There are 12 15-letter words that match ___C_A_________. 4 are common words, such as PROCRASTINATING and PROCRASTINATION. A rarer one is TEACHABLENESSES. 4 words contain a doubled letter.

Full list 12

procrastinatingprocrastinationprocrastinatorsspecializationsmerchantabilitymischaracterizeprocrastinatorytractablenessesexecrablenessespeaceablenessesspecialisationsteachablenesses

About this list

Words
12 (4 common words)
Common example
procrastinating
Rare example
teachablenesses
Doubled letters
4
Ending in S
7

Questions

How many 15-letter words matching ___c_a_________ are there?

12. 4 of them are common words.

What is a common example?

PROCRASTINATING is among the common words in this set.