Looking for the meaning or definition of the word door? Here's what it means.
Noun
A portal of entry into a building, room or vehicle, consisting of a rigid plane movable on a hinge. Doors are frequently made of wood or metal. May have a handle to help open and close, a latch to hold the door closed, and a lock that ensures the door cannot be opened without the key.
Any flap, etc. that opens like a door.
(immigration) An entry point.
A non-physical entry into the next world, a particular feeling, a company, etc.