Sentinel
Sentinel noun - A person or group that watches over someone or something.
Usage example: a lone sentinel kept watch over the fort
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Synonyms for Sentinel
Watcher
Watcher noun - A person or group that watches over someone or something.
Usage example: the inexperienced babysitter turned out to be a well-meaning but hopelessly incompetent watcher of young children
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Synonyms for Watcher
Sentinel and watcher are semantically related in guard topic. You can use "Sentinel" instead a noun "Watcher", if it concerns topics such as warden, lookout, sentry, guardian.
Mutual synonyms
Cite this Source
Watcher and Sentinel. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/sentinel/watcher
Sentinel & Watcher. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/sentinel/watcher>.
Watcher or Sentinel. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/sentinel/watcher.
Google Ngram Viewer shows how "sentinel" and "watcher" have occurred on timeline