noun

"Door" is something you find at the entrance or exit of a house or building. It's made of materials like wood or metal and has a handle or knob that you can use to push or pull to open and close it. When you want to go inside a house or room or leave it, you use a door.

Example

1. I knocked on the door, but there was no answer.
2. Please remember to lock the front door when you leave.
3. The cat scratched at the door, wanting to come inside.