A black dot on a map usually means a city.
Generally a star is a capital city, and a "dot" is a city.
k
a capital
In almost all map systems, a black dot is a city. The larger a dot is, the bigger a city is if there is more than one size on your map.
cities
capitol
capitol
A black dot on a map typically means a city, town, recognized place, or neighborhood. Usually, the larger the dot, the more populous the place.
there is a city there
city
A black dot on a map can mean either a town or city. HTH! ;) (hope this helps)
The meaning of symbols on a map are stated in the legend for that map which will be attached to it or printed in one corner of the map.