watcher

noun

  1. 1

    a close observer; someone who looks at something (such as an exhibition of some kind)

    the spectators applauded the performance

    television viewers

  2. 2

    a person who keeps a devotional vigil by a sick bed or by a dead body

  3. 3

    a guard who keeps watch

Synonyms

Also useful for “watcher”:Unscrambler