Doorway (noun)

1. An opening in a wall or in the side of a building, usually with a door, through which one can enter or exit.
2. A passage leading to a room or building.

Origin:

From old english duruweard ("doorkeeper"), from duru ("door") + -weard ("keepe.r")

Examples:

1. He stood in the doorway.
2. She hesitated before crossing the threshold of the doorway.
3. The doorway was decorated with a wreath.
4. The doorway led to the living room.
5. The doorway was the only way in and out of the building.