15-Letter Words Matching C_____O________

There are 30 15-letter words that match C_____O________. 7 are common words, such as CAPACIOUSNESSES and CARCINOGENICITY. A rarer one is CYTOPHOTOMETRIC. 11 words contain a doubled letter.

Full list 30

Common words

capaciousnessescarcinogenicitycarnivorousnessconsciousnessescosmopolitanismcourteousnessescredulousnessescaprifoliaceouscephalochordatecerebrovascularcollaborativelycongruousnesses
capaciousnessescarcinogenicitycarnivorousnessconsciousnessescosmopolitanismcourteousnessescredulousnessescaprifoliaceouscephalochordatecerebrovascularcollaborativelycongruousnessescorticosteroidscorticosteronescosmopolitanizecyanocobalaminscarcinosarcomascephalothoracescephalothoraxeschondrocraniumsclamorousnessescleistogamouslycommemorativelycomptrollershipconveyorizationcorticotrophinscrashworthinesscryoprotectantscyanocobalaminecytophotometric

About this list

Words
30 (7 common words)
Common example
capaciousnesses
Rare example
cytophotometric
Doubled letters
11
Ending in S
18

Questions

How many 15-letter words matching c_____o________ are there?

30. 7 of them are common words.

What is a common example?

CAPACIOUSNESSES is among the common words in this set.