He knocked on the door.
Sliding door definitin.
Sliding door definition is a door that opens and closes by sliding sideways instead of by swinging on hinges.
Sliding doors can be mounted either on top of a track below or be suspended from a track above and some types disappear in a wall when slid open.
A sliding door is a type of door which opens horizontally by sliding usually parallel to a wall.
Door a swinging or sliding barrier that will close the entrance to a room or building or vehicle.
Learner s definition of sliding door.
A door that opens and closes by sliding sideways instead of by swinging on hinges.
Sliding door a door that opens by sliding instead of swinging.