The term "turnkey" refers to a ready-to-use solution or product that requires minimal setup, installation, or configuration. It is often used in real estate and construction industries to describe a property or building that is fully equipped and prepared for immediate occupancy, with all necessary systems and features already installed and operational. In other contexts, the term can also refer to a complete solution or package that includes everything needed for it to function properly without requiring additional work or resources from the user.