n.1.  The part or parts that face out; the outer surface.
2. a.  The part or side of an object that is presented to the viewer; the external aspect.
b.  Outward aspect or appearance: "You'll never persuade me that I can't tell what men are by their outsides" (George Eliot).
 3.  The space beyond a boundary or limit.
4.  Sports   A position at a distance from the inside or center, as of a playing field or racetrack.
5.  The utmost limit; the maximum: We'll be leaving in ten days at the outside.
 adj.1. a.  Of, relating to, or being on or near the outer side; outer: the outside margin.
b.  Of, restricted to, or situated on the outer side of an enclosure or a boundary; external: an outside door lock; an outside antenna.
 2.  Located away from the inside or center: the outside traffic lane.
3. a.  Acting, occurring, originating, or being at a place beyond certain limits: knew little of the outside world.
b.  Gaining or providing access to the external side: an outside telephone line.
 4. a.  Not belonging to or originating in a certain group or association: requested outside assistance; deplored outside interference.
b.  Being beyond the limits of one's usual work or responsibilities: My outside interests are skiing and sailing.
 5.  Extreme, uttermost: The costs have exceeded even our outside estimates.
6.  Very unlikely; remote: only an outside possibility of winning the tournament.
7.  Baseball   Passing on the side of home plate away from the batter. Used of a pitch.
 prep.1.  On or to the outer or external side of: saw someone outside the window.
2.  Beyond the limits of: a little place outside the city.
3.  With the exception of; except: We have no other information outside the figures already given.