Turnkeys are individuals who possess the authority or responsibility to maintain and operate a certain system or facility. In the construction industry, turnkeys often refer to contractors who have the responsibility of delivering a complete project to the client. Some synonyms used for turnkeys include "gatekeepers," "custodians," "administrators," and "caretakers." Other possible synonyms may include "stewards," "managers," "supervisors," and "overseers." The word "turnkey" has evolved to incorporate a broader sense of responsibility and ownership, and thus, it can be applied to several different contexts. Regardless of the specific usage, it is essential that turnkeys possess the knowledge and expertise required to manage their areas of responsibility effectively.