Outside of the USA, most people have never heard of the term “pocket door”. Can you explain what this is?
A pocket door is a door that slides into the wall as opposed to opening in or out as a regular door would.
A good comparison would be the sliding doors as most mega-marts or large stores that slide open when you walk towards them or if you're a fan of "Star Trek: The Next Generation". The doors throughout the ship are "pocket doors" (except our pocket doors don't make the neat hissing sound when the open).