Someone who takes care of a place or thing; someone looking after a place, or responsible for keeping it in good repair.
Someone who takes care of a person; a parent, carer or other guardian.
Temporary, on a short term basis.
A person who holds open the door at the entryway (entrance) to a building, summons taxicabs, and provides an element of security; in apartment buildings, he also accepts deliveries and may perform certain concierge type services.