Operating System
(In the context of an actual map, OS stands for Ordnance Survey, the national mapping agency for Great Britain.)
Milestone
On an OS map, it's a Public House
Place of Worship
OS stands for Ordnance Survey, which is the national mapping agency of Great Britain. They produce detailed mapping and geospatial data for use in various applications, including urban planning, environmental monitoring, and navigation.
what does a bridge look like on a map
it means boo boo
marks on a map that stand for real places or real features on a map
Post Office
OS : Over Seas Conus : Continental United States
Operating System
Operating System.
a red line