Orphan resource
A resource that is still running and billing but no longer serves any purpose or has no clear owner, such as an unattached disk, an old snapshot or a forgotten test server. It often lacks tags and sits outside infrastructure-as-code. Why it matters: Orphans cost money every month until someone finds and removes them.
Read the term in context.
Each row is a lesson that uses this term. The lesson where it first appears is the canonical definition.