A close observer; someone who looks at something (such as an exhibition of some kind). Synonyms:looker, spectator, watcher, witness."Television viewers" , "Sky watchers discovered a new star"
2.
An optical device for viewing photographic transparencies.
... wrong sense!" Plemponi said hastily. "But your name has become much more widely known than you may believe. The news viewers mentioned you regularly in their reports on Harvest Moon and the Commissioner. ... — Legacy • James H Schmitz
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