: an activity in which someone walks through an area, building, etc., in order to inspect it
: the act of going slowly through the steps of a process, job, etc., in order to practice doing it or to help someone learn it
: an explanation or guide that tells you how to do something by explaining each of its parts or steps
What made you want to look up walk-through? Please tell us where you read or heard it (including the quote, if possible).