watcher (
http://definr.com/watcher)
n 1: a close observer; someone who looks at something (such as an
exhibition of some kind); "the spectators applauded the
performance"; "television viewers"; "sky watchers
discovered a new star" [syn:
spectator,
witness,
viewer,
looker]
2: a guard who keeps watch [syn:
watchman,
security guard]
3: a person who keeps a devotional vigil by a sick bed or by a
dead body