| Term | Definition |
| friend class_name function_name (class_name); | declaration of a friendship function |
| friend class_name; | declaration of a friendship class |
| friends | functions or classes that are declared as such |
| class derived_class_name: access specifier base_class_name { /*...*/ }; | delcaration of derived class |
| derived_constructor_name (parameters) : base_constructor_name (parameters) {...} | declaration of a derived constructor |
| class derived_class_name: access specifier1 base_class_name1 { /*...*/ }, access specifier2 base_class_name2 { /*...*/ }; | delcaration of derived class with multiplie inheritance |