What type of windows operates similarly to sliding doors?

Horizontal sliding windows operate similarly to sliding doors because they open by sliding horizontally along a track. This design allows for easy operation and maximizes ventilation compared to other window styles. They typically feature two sashes, with one sliding over the other, much like how sliding doors have panels that move parallel to each other. This functionality makes horizontal sliding windows a popular choice for areas that require wide openings or where space constraints don't allow for outward-swinging options.