caretaker
n. countable B2 Upper Intermediate US //ˈkɛɹˌteɪkɝ// UK //kˈeəteɪkɐ// care·tak·er
n. a person who looks after a building, garden, or group of people. You use this word for someone whose job is to keep things safe and in good condition.
n. a person employed to maintain a property, institution, or group; responsible for routine care and security.
The caretaker locks the school gates every evening.
The building caretaker checks the heating system twice a day during winter.
As the estate's sole caretaker, he spent his days repairing fences and ensuring the historic gardens remained pristine for visitors.
From care + taker.