Metro Toronto

Etymology
. From being the metropolitan urbanized zone around Toronto.

Proper noun

 * 1) A former supramunicipal government that existed in the late 20th century, composed of the former cities of Etobicoke, Scarborough, York, North York, East York, Toronto; which was merged into the 21st century city of Toronto, with six boroughs composed of the former cities of the merger.
 * 2) The ;  metropolitan Toronto