Robot

Noun

 * 1)  An intelligent mechanical being designed to look like a human or other creature, and usually made from metal.
 * 2)  A person who does not seem to have any emotions.
 * 3) A machine built to carry out some complex task or group of tasks, especially one which can be programmed.
 * 4)  A traffic light.
 * 5)  A theodolite which follows the movements of a prism and can be used by a one-man crew.
 * 6) A style of dance popular in disco whereby the dancer impersonates the movement of a robot