watcher

watch·er  (wchr)

n.

1. One that watches or observes: a fire watcher; a watcher of Sino-American relations.

2. One who keeps vigil, as at a sick person's bedside.

Thesaurus

Noun	1.	watcher - 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" looker, spectator, viewer, witness beholder, observer, perceiver, percipient - a person who becomes aware (of things or events) through the senses browser - a viewer who looks around casually without seeking anything in particular bystander - a nonparticipant spectator cheerer - a spectator who shouts encouragement eyewitness - a spectator who can describe what happened gawker - a spectator who stares stupidly without intelligent awareness motion-picture fan, moviegoer - someone who goes to see movies ogler - a viewer who gives a flirtatious or lewd look at another person looker-on, onlooker - someone who looks on playgoer, theatergoer, theatregoer - someone who attends the theater rubbernecker, rubberneck - a person who stares inquisitively spy - a secret watcher; someone who secretly watches other people; "my spies tell me that you had a good time last night" starer - a viewer who gazes fixedly (often with hostility) peeper, Peeping Tom, voyeur - a viewer who enjoys seeing the sex acts or sex organs of others
	2.	watcher - a guard who keeps watch               security guard, watchman private security force, security force - a privately employed group hired to protect the security of a business or industry bank guard - a security guard at a bank fire watcher - (during World War II in Britain) someone whose duty was to watch for fires caused by bombs dropped from the air guard - a person who keeps watch over something or someone lookout, lookout man, picket, scout, sentinel, sentry, spotter, watch - a person employed to keep watch for some anticipated event night watchman - a watchman who works during the night patroller - someone on patrol duty; an individual or a member of a group that patrols an area port watcher, portwatcher - a watchman on a wharf
	3.	watcher - a person who keeps a devotional vigil by a sick bed or by a dead body individual, mortal, person, somebody, someone, soul - a human being; "there was too much for one person to do"