Definition: The abbreviation "cc" stands for "cubic centimeters." In golf, it is used to denote the volume of a clubhead. For example, a driver might have a 400cc clubhead; that is, a clubhead whose volume is 400 cubic centimeters. The greater the number, the larger the clubhead.
In general, the greater the volume of the clubhead, the larger the sweetspot will be. And often, a greater volume indicates a deeper center of gravity.

