Short for high-visibility. railway workers in high-vis jackets
More example sentences
- I usually wear a hi-vis jacket and a cycle helmet too, not because they're required but just to add to visibility.
- When road-running, make sure you are visible - even in daylight, hi-vis clothing makes you far more easily seen by motorists.
- It was a very high-vis mission, and there was many a tense moment.
Definition of high-vis in:
- The US English dictionary