turnkey
/ˈtɜrnkiː/Definitions
1. noun
A project or business that is fully operational and ready for the buyer to take over, with minimal additional effort required.
“The company was interested in purchasing the turnkey manufacturing facility.”
2. adjective
Ready for immediate use or exploitation; fully developed or operational.
“The turnkey software solution saved the company a significant amount of time and resources.”
3. adverb
In a way that is ready for immediate use or exploitation; fully developed or operational.
“The new system was developed and implemented turnkey, resulting in significant cost savings.”