viewer

plural viewers

1. Someone who views a spectacle; an onlooker or spectator.

   It’s clear why enterprising people make the videos, but what compels so many viewers to watch an amateur video of some stranger they don’t know opening a box? What would compel a viewer to subscribe to the all-coffee channel and binge-watch a guy unpacking coffee makers?

   2014 February 13, Heather Kelly, “The bizarre, lucrative world of ‘unboxing’ videos”, in CNN

   1 more example

   This sensation of an object becoming alive is a characteristic that, I believe, seizes all viewers of a van Gogh. The Bible goes beyond being a simple still-life object to become a living thing, an expression of strength, an existence that emanates from itself, beyond the painting surface to participate in our very lives.

   2010, Antonio Saggio, A Secret van Gogh: His Motif and Motives, →ISBN, page 11

2. Someone who watches television.
3. Any optical device used to view photographic slides.
4. computingA program that displays the contents of a file.

   This image viewer can display pictures in GIF, PNG and JPG format.

5. historicalAn appointed inspector or examiner
6. An appointed inspector or examiner:
   1. historicalbusinessThe manager of a colliery, who directs its workings and ventilation.