n.

1. the region that is outside of something;
   exterior
2. the outer side or surface of something;
   exterior

adj.

1. relating to or being on or near the outer side or limit
   
   • an outside margin
2. coming from the outside;
   external, extraneous
   
   • extraneous light in the camera spoiled the photograph
   • relying upon an extraneous income
   • disdaining outside pressure groups
3. originating or belonging beyond some bounds:"the outside world"
   
   • outside interests
   • an outside job
4. located, suited for, or taking place in the open air;
   outdoor(a), out-of-door
   
   • outdoor clothes
   • badminton and other outdoor games
   • a beautiful outdoor setting for the wedding
5. functioning outside the boundaries or precincts of an organized unit
   
   • extramural hospital care and treatment
   • extramural studies
6. leading to or from the outside;
   outside(a)
   
   • an outside door
7. from or between other countries;
   external, international, outside(a)
   
   • external commerce
   • international trade
   • developing nations need outside help
8. very unlikely;
   remote
   
   • an outside chance
   • a remote possibility
   • a remote contingency
9. on or toward an outer edge
   
   • an outer lane
   • the outside lane
10. (of a baseball pitch) on the far side of home plate from the batter;
    away
    
    • the pitch was away (or wide)
    • an outside pitch

adv.

1. outside a building;
   outdoors, out of doors, alfresco
   
   • in summer we play outside
2. on the outside
   
   • outside, the box is black