| A | B |
| A user-defined type | class |
| A constant belonging to a class | constant data member |
| A member function that is automatically called when an object is instantiated | constructor |
| An identifier associated with a class | instance |
| Declare an object | instantiate |
| A function that belongs to a class | member function |
| Sometimes used to refer to a member function | method |
| A member function that overloads a C++ built-in operator | operator member function |
| An instance of a class | object |
| Overloaded operator in the string class that concatenates strings | + AND += |
| Keyword used to define an object as a parameter than cannot be changed | const |
| A String member function that returns the position of a caracter or string in the calling String object | find() |
| A class in the iostream library that is used for input/output | ios |
| A String member function that returns the number of characters of the calling String object | length() |
| A String member function that returns a substring of the calling String object | substr() |
| A class in the toplist library that is used to create a file of data items | TopListClass |