1.VerbTo go through, to travel through, to transit or lie across a place or from one place to another.
"We passed through the checkpoint on the road that passes through Freedonia."
2.VerbTo make something move through something else.
"The dough is passed through the pasta machine several times."
3.VerbTo undergo; to experience.
"We all passed through those phases."
4.VerbSynonym of infiltrate.
"We passed through enemy lines in the fog."
5.NounA 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.