what3words is a really simple way to talk about location. Each 3m square in the world has a unique three word address that will never change.
For example, ///insurance.seasonal.gather marks the toposcope on the Worcestershire Beacon.
Three word addresses are easy to say and share, and are as accurate as GPS coordinates. Three word addresses are unique, more precise than postcodes and available in over 35 languages. To prevent mistakes, similar three word addresses are placed as far apart as possible.
If you are in the middle of nowhere and need to direct emergency services to the right place or just need to find your car use what3words.
For more detail follow the link. Download the app for free from the Play Store or the App Store.