high-vis - definition and synonyms

noun [uncountable] informal 

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/ˌhaɪ ˈvɪz/
  1. clothing that is brightly coloured and reflects light so the person wearing it can be seen easily

    A man in high-vis came over and radioed for their first aid team.

    This meaning is based on one submitted to the Open Dictionary from United Kingdom on 13/04/2015