The word Drone is actually having two distinct meanings: the first one is a low humming sound that goes on continuous basis and second indicates the male bee. We all know that male bee has no work to do, it never goes out to gather honey; its existence is just for impregnating the bee queen. So it is not a bad idea to use this word to describe an UAV- that also produces sound like group of bees and phantom appears to be mindless. The drone to the today’s world is an unmanned aerial vehicle or UAV that is either operated by human from remote location or it can work autonomously as per set mode.