cc

[[t]si͟ː si͟ː[/t]]

1) You use cc when referring to the volume or capacity of something such as the size of a car engine. cc is an abbreviation for `cubic centimetres'.

...1,500 cc sports cars.

2) cc is used at the end of a business letter to indicate that a copy is being sent to another person.

...cc J. Chater, S. Cooper.