From OpenStreetMap Wiki
|Used to mark the absence of a name, where no signs are present to survey the name|
|Used on these elements|
|Tools for this tag|
This key is used to annotate the fact that there is no on-the-ground sign indicating this feature's name.
See the proposal Proposed features/Noname for an overview of all the possible ways of indicating an object is unnamed.
- 2016-05-23 693x