'walk-through' definitions:

Definition of 'walk-through'

(from WordNet)
noun
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"
noun
A pedestrian passageway through the ground floor of a building
noun
A first perfunctory rehearsal of a theatrical production in which actors read their lines from the script and move as directed
noun
The act of walking in order to view something; "the realtor took her on a walk-through of the apartment"