Question

What do you mean by a pointer to a pointer can this be extended?

Answer 1

A pointer is a variable that stores the address of a variable.

Pointers are assigned as :  *variable_name

A pointer to a pointer will store the address of the variable in which the address of another variable is stored

Answer 2

A pointer is a variable that saves the location of the different variable.  For instance, an integer variable operates or stores an integer value, however, an integer pointer holds the position of an integer variable.

Yes, it can be extended because in programming we primarily utilize pointers to save the other variable's location. A pointer variable is pronounced with a '*' before it. int *a which is the type of pointer that can hold only the positions of int type variables.