WATCHER

[watch.er] n (1509): one that watches: as a: one that sits up or continues awake at night b: watchman c (1): one that keeps watch beside a dead person (2): one that attends a sick person at night d: a person who closely follows or observes someone or something "a Supreme Court ~"--often used in combination "celebrity-watchers" e: a representative of a party or candidate who is stationed at the polls on an election day to watch the conduct of officials and voters