Walkthrough (noun)

1. A practice or dry run of a play, performance, or procedure.
2. A demonstration or explanation of how to do something.

Origin:

Formed by combining the verb "walk" and the noun "through".

Examples:

1. We did a walkthrough of the play before opening night.
2. The builder provided a walkthrough of the new house.
3. The game developers did a walkthrough of the new level.
4. The new employee received a walkthrough of the job duties.
5. The coach gave a walkthrough of the new play.