noun

1. the outer side, part, or surface; exterior
2. 1. outward aspect or appearance; that part of anything that is presented to view
   2. that which is obvious or superficial
3. any place or area not inside

adjective

1. of or on the outside; outer
2. 1. originating, coming from, or situated beyond given limits; from some other place, person, group, etc. to accept no outside help
   2. leading to the outside
3. extreme; maximum an outside estimate
4. mere; slight an outside chance
5. Baseball passing home plate beyond the side of the plate that is farthest from the batter

adverb

1. on or to the outside
2. beyond certain limits
3. in or into the open air

1. on or to the outer side of
2. beyond the limits of
3. Informal except