Question

what is an interface

Answer 1

The word which have different meaning is called interface

Answer 2

objects define their interaction with the outside world through the methods that they expose. Methods from the object's interface with the outside world, the buttons on the front of your television set, for example, are the interface between you and the electronic wiring on the other side of its plastic casing. You press the "power" button to turn on and off the TV.