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preview +‎ -er


previewer (plural previewers)

  1. A person who sees a film or TV program, etc. before its general release to the public.
  2. (computing) A program that provides a preview of a document or other work.
    • 1988, Institute for Scientific Information, “The Scientist”, in (Please provide the book title or journal name), volume 2, number 1-12:
      For example, the Macintosh versions of TeX provide a screen previewer as a part of the basic package, whereas the screen previewer for the IBM PC is an extra.
    • 2010, Jim Boyce, Microsoft® Outlook® 2010 Inside Out
      To view a file for which there is no previewer installed, save the file to disk and open it with the appropriate application.