Google and AWS both use regions as a way to provide cloud services to customers.
In cloud computing, a cloud region is a geographic area that contains multiple cloud zones, while a cloud zone is a logical data center within a region
Google uses zones to provide data center services and every region will have at least 3 zones.
Google Cloud and AWS both have points of presence (PoPs) located in many more locations around the world.
Google Cloud uses points of presence to provide Cloud CDN and to deliver built-in edge caching for services such as App Engine and Cloud Storage.
AWS uses points of presence to provide the content delivery network service, Amazon CloudFront, and for edge caching services like Lambda at the edge.