The phrase "to slide the door" means to move or operate a door by sliding it along its track. This can refer to opening or closing a door, as well as moving it from side to side within its frame.
The living area has large glass sliding doors opening onto a covered deck overlooking the swimming pool and garden. (travelground.com)
This Asian inspired theme room is part of the main guest house with sliding door leading onto a private patio with a fish pond. (travelground.com)
The power sliding doors on each side can be remotely opened with the key and leave a huge opening, which was a relief when my hands were full. (automobilemag.com)