American English

Definition of outer adjective from the Oxford Advanced American Dictionary



    [only before noun]
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  1. 1on the outside of something synonym external the outer layers of the skin
  2. 2furthest from the inside or center of something I walked along the outer edge of the track. the outer suburbs of the city Outer Mongolia (figurative) to explore the outer (= most extreme) limits of human experience opposite inner
See the Oxford Advanced Learner's Dictionary entry: outer