Cis forClothes iron
Cogs are the small "teeth" around the edges of gears. Cogs allow the gears to grip onto each other as they turn around.
Cis forContact lens
Cis forCrane (machine)
Cis forCrystal Ball
A crystal ball is thought to aid people in telling the future. Gazing in to a crystal ball is supposed to reveal images that may be used to help tell someone's fortune.
Dis forDrone (aircraft)
A drone is a small aircraft that flies without a pilot inside it. It is controlled remotely by a person on the ground or programmed to fly automatically.
The word drone began to be used for pilotless aircraft in the early 1900s. The name was inspired by male bees, also called drones, which do not gather food and were used as a metaphor for machines that operate without a human inside.










