A vestibule, foyer or entranceway with doors to the exterior on one end and doors to the interior on the other, functioning to keep indoor and outdoor air, humidity, and air temperatures separate.
A sealed, airtight chamber, such as in a manned spacecraft or submarine, used to provide access to and from the sealed area without allowing air out or water in.
A framed, window-like aperture in the interior wall of a house, usually between a kitchen and dining room, through which items (especially food) can be passed. A serving hatch.
To undergo; to experience.
To infiltrate.
To transit something.
To make something move through something else.