caretaker
1. [ noun ] (work) a custodian who is hired to take care of something (property or a person)
Related terms: custodian concierge superintendent verger sexton
2. [ noun ] (work) an official who performs the duties of an office temporarily
Examples:

"he acted as a caretaker until a new president could be elected"

Related terms: official
Similar spelling:   cartage
  Cartagena