Douglas Harper's Etymology Dictionary
WordNet
n. a thorough explanation (usually accompanied by a demonstration) of each step in a procedure or process; "she gave me a walk-through of my new duties"
a pedestrian passageway through the ground floor of a building
a first perfunctory rehearsal of a theatrical production in which actors read their lines from the script and move as directed
the act of walking in order to view something; "the realtor took her on a walk-through of the apartment"
Usage examples of "walk-through".
Ytt made tantalum, tantalum made crystals, crystals operated the walk-through that he used to find more Ytt to make .
The piezo crystal of his walk-through was steadily getting further away from the optimum frequency.
Cage, Roman and Kerrie did a sweeping walk-through of the crime scene, then left.
There was a conveyor strip for possessions beside the walk-through entrance, but he held on to the bag.
I turn the expediting over to Cachundo, drag my ass down the Stairmaster for a final walk-through.