1. Moving in one side and out of the other side of (an opening, channel, or location).
2. Continuing in time towards completion of (a process or period).
3. So as to inspect all or part of (a collection, inventory, or publication).
4. (With reference to public transport) continuing or valid to the final destination.
5. (Of a room) running the whole length of a building.
Soldiers were marching through the fields.