9-Letter Words Matching _C_____O_

There are 20 9-letter words that match _C_____O_. 11 are common words, such as ACCESSION and ACCORDION. A rarer one is SCIROCCOS. In this set, I is the most frequent open letter (15 words). 9 words contain a doubled letter.

Full list 20

accessionaccordionaccretionactivatoractuationocclusionscarecrowscenariosschoolboyscrapbookscutcheonactinopodectropionichneumonocotillosoctillionschizopodscrutatoracylationsciroccos

About this list

Words
20 (11 common words)
Common example
accession
Rare example
sciroccos
Doubled letters
9
Ending in S
3
Most frequent letter
I (15)

Questions

How many 9-letter words matching _c_____o_ are there?

20. 11 of them are common words.

What is a common example?

ACCESSION is among the common words in this set.