what3words is the easiest way to describe any precise location. It has divided the world into 3 metre squares and given each one a unique identifier made from three words. what3words can be used via the free mobile app and the online map at what3words.com
999 services will ask you to speak your three words, once you tell them [from the app, or website], they can locate you to within three metres.
Businesses in travel, mobility and logistics, as well as some emergency response teams, use what3words to operate more efficiently and provide a better service.