Definition of high-visibility adjective from the Oxford Advanced Learner's Dictionary

     

    high-visibility

     adjective
    adjective
    BrE BrE//ˌhaɪ vɪzəˈbɪləti//
     
    ; NAmE NAmE//ˌhaɪ vɪzəˈbɪləti//
     
    [usually before noun](informal high-vis, hi-vis)
     
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  1. 1used to describe clothing made of material that appears very bright and is very easy to see cyclists with high-visibility jackets Hard hats and high-vis vests must be worn on the building site.
  2. 2used to describe something that is intended to attract a lot of attention a high-visibility ad campaign