1. Literally, to walk into the interior of something or some place. Thank you for coming to my office on such short notice. Please, step inside and grab a seat. She stepped inside the spooky building with trepidation.

2. To gain an idea or understanding of the way in which someone, something, or some place operates. The new documentary gives people the chance to step inside the world of Victorian England. These stories let us step inside the lives of people we would never otherwise encounter.