caretaker guardian custodian guard warden warder attendant
The custodian thoroughly cleaned the school hallway every evening.
Custodian.
The base word of "custodian" is "custody," which means the care, keeping, or guardianship of something. In this context, a custodian is someone who has the responsibility of protecting or overseeing something.
guardian,warden.
Some people would say "custodian," but a better way to say it would be "Sanitation Engineer"
No
No
Custodian is used in England still but is a bit dated now and is used when someone looks after something in a general way. 'David was the custodian of his fathers estate after his death'
Janitor. Or custodian.
Mankind is the custodian of Earth.
The Custodian was created in 1993.