1 : on or toward an outer edge; "an outer lane"; "the outside lane"
2 : leading to or from the outside; "an outside door"
3 : (of a baseball pitch) on the far side of home plate from the batter; "the pitch was away (or wide)"; "an outside pitch"
4 : coming from the outside; "extraneous light in the camera spoiled the photograph"; "relying upon an extraneous income"; "disdaining outside pressure groups"
5 : from or between other countries; "external commerce"; "international trade"; "developing nations need outside help"