what three words

What3words is a proprietary geocode system designed to identify any location on the surface of Earth with a resolution of about 3 meters. Every 3-meter square of the world has been given a unique combination of three words, which can be used for e-commerce and delivery, navigation, emergencies, and more. The system encodes geographic coordinates into three dictionary words, making it easier to remember and communicate precise locations. What3words divides the world into a grid of 57 trillion 3-by-3-meter squares, each of which has a three-word address. The company says they do their best to remove homophones and spelling variations, but at least 32 pairs of English near-homophones still remain. The app can be used to help emergency services know exactly where to find someone, plan exact meet-up locations, give car breakdown services a precise location, navigate to any destination easily, and save favorite memorable spots.