# 7.16. Glossary¶

object:

A collection of related data that comes with a set of functions that operate on it. The objects we have used so far are the cout object provided by the system, and strings.

index:

A variable or value used to select one of the members of an ordered set, like a character from a string.

traverse:

To iterate through all the elements of a set performing a similar operation on each.

counter:

A variable used to count something, usually initialized to zero and then incremented.

increment:

Increase the value of a variable by one. The increment operator in C++ is ++. In fact, that’s why C++ is called C++, because it is meant to be one better than C.

decrement:

Decrease the value of a variable by one. The decrement operator in C++ is –.

concatenate:

To join two operands end-to-end.