viewer

Noun

viewer (plural viewers)

1. Someone who views a spectacle; an onlooker or spectator.
   • 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...2010, Antonio Saggio, A Secret van Gogh: His Motif and Motives, →ISBN, page 11
   • 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
2. Someone who watches television.
3. Any optical device used to view photographic slides.
4. A program that displays the contents of a file.
   • This image viewer can display pictures in GIF, PNG and JPG format.
5. (historical) An appointed inspector or examiner
6. (historical) The manager of a colliery, who directs its workings and ventilation.