walk through

Short definition from Wiktionary

Verb

1. 1
   To explain (something) to (someone), step by step.
2. 2
   To rehearse (something) casually.
3. 3
   To perform (something) with ease or perfunctorily.
4. 4
   Used other than figuratively or idiomatically: see walk, through.

Adjective

1. 1
   That can be walked through.
2. 2
   Of passenger carriages in a train, having no doors in gangway connections between the carriages, often in combination with longitudinal seating, creating a "see-through" effect through the train.

Noun

1. 1
   Alternative form of walkthrough.