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Viewer vs Peephole - What's the difference?

viewer | peephole |

As nouns the difference between viewer and peephole

is that viewer is someone that views some spectacle; an onlooker or spectator while peephole is a small hole, opening or piece of glass, especially in a door, through which to look.

viewer

English

Noun

(en noun)
  • Someone that views some spectacle; an onlooker or spectator
  • Someone who watches television
  • Any optical device used to view photographic slides
  • (computing) A program that displays the contents of a file of digital images; an image viewer or file viewer
  • peephole

    English

    Noun

    (en noun)
  • A small hole, opening or piece of glass, especially in a door, through which to look.