parameter

A parameter is a special word that helps us give instructions to a computer program.

For example, imagine you have a robot that can draw shapes. If you want the robot to draw a square, you can tell it to draw a square by giving it a parameter. The parameter could be the size of the square, like saying 'draw a square that is 5 centimeters on each side'. The robot will use the parameter to know how big the square should be.