7-Letter Words Matching O____C_

There are 18 7-letter words that match O____C_. 9 are common words, such as OARLOCK and OFFENCE. A rarer one is OVONICS. 4 words contain a doubled letter.

Full list 18

oarlockoffenceorificeostrichoutbackoutfaceoutraceoveractoviductoutpaceoomiackoomiacsoothecaostracaoutkickoutrockovisacsovonics

About this list

Words
18 (9 common words)
Common example
oarlock
Rare example
ovonics
Doubled letters
4
Ending in S
3

Questions

How many 7-letter words matching o____c_ are there?

18. 9 of them are common words.

What is a common example?

OARLOCK is among the common words in this set.