Watcher

n. observer, viewer; watchman; guardian; one who watches over a sick person or dead body

Watcher may refer to: In print:Watcher (comics), an extraterrestrial species who watch the universe in Marvel ComicsWatchers (novel), a 1987 novel written by Dean KoontzWatcher in the Water, a creature from Tolkien's fantasy book series The Lord of the RingsThe Grigori, a class of fallen angels in Biblical mythology
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Noun
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"
(synonym) spectator, witness, viewer, looker
(hypernym) perceiver, observer, beholder
(hyponym) browser
(derivation) watch, look on
2. a guard who keeps watch
(synonym) watchman, security guard
(hypernym) guard
(hyponym) bank guard
(member-holonym) security force, private security force
(derivation) watch, look out, watch out
3. a person who keeps a devotional vigil by a sick bed or by a dead body
(hypernym) person, individual, someone, somebody, mortal, human, soul

(n.)
One who watches; one who sits up or continues; a diligent observer; specifically, one who attends upon the sick during the night.
  

[Judaic] A heavenly being in the Book of Daniel. A watcher gives a strange dream to King Nebuchadnezzar. Watchers also appear in later mystical works. In the Apocryphal book of Enoch, they are a race of giants, the children of angels who married human women. God appointed them as his guardians on the frontiers of his universe, one at every level.