parentcity
nounUK /ˈpeə.rəntˌsɪt.i/
US /ˈper.əntˌsɪt.i/
A parentcity is a big city that other smaller towns look up to and learn from.
The little town sent its leaders to visit the parentcity to learn how to build a new park.
OTHER MEANINGS
2. The original city from which a group of settlers came.
The settlers named their new home after their parentcity across the sea.
3. A city that controls or guides smaller nearby towns.
The parentcity manages the water supply for all the villages around it.
4. A city where a company or group started before spreading to other places.
The bakery's parentcity is still where all its bread is made.