1. (noun) a thorough explanation (usually accompanied by a demonstration) of each step in a procedure or process

• account
• explanation

2. (noun) a pedestrian passageway through the ground floor of a building

• passageway

3. (noun) a first perfunctory rehearsal of a theatrical production in which actors read their lines from the script and move as directed

• dry run
• rehearsal

4. (noun) the act of walking in order to view something

• walk

1. (noun) a first perfunctory rehearsal of a theatrical production in which actors read their lines from the script and move as directed

• walk through