Definition of "outside door" []

• A doorway that allows entrance to or exit from a building (noun)

WordNet. Princeton University. 2010.

• "The apartment is a sixth-floor walk-up in an outwardly unimpressive building, and on the outside door is the same red-and-gold good-luck banner that hung on the Shens’ door when they lived in a hundred and sixty square feet in Daowai."
• "When she had performed the last solemn duty, and was preparing to lie down, a little bustle on the outside door occasioned Mrs. Beauchamp to open it, and enquire the cause."