walled garden

1. A garden enclosed by walls for purposes of shelter or decoration.

   огороджений садohorodženyj sad, городhorod

2. Any closed platform. A closed platform is any computing system where the manufacturer retains monopolistic control over installation, distribution, and use of software and services.

3. (figuratively)A closed platform for content or services controlled by a single carrier or service provider, typically requiring subscription to access.

4. (Internet)A set of web pages or other resources that are richly interlinked and share a common focus, but have little or no linkage to or from the larger network.

regular