4
watcher(noun, watch, guard, lookout, sentry)
3
beacon(case, watch, guard, post, warning)
3
finder
3
observatory(noun, case, watch, guard, post)
3
warden(noun, watch, guard, champion, protector)
2
attention(noun, guard, lookout, sentry)
2
cop(noun, guard, safeguard, safety, champion)
2
escort(noun, watch, guard, safeguard, champion)
2
garrison(noun, safety, vigilance)
2
hawk(noun, case, watch, overlook, guard)
2
monitor
2
pale
2
pathfinder
2
policeman
2
preserve(verb, support, cover, keep, secure)
2
protect(verb, keep, defend, guard, shield)
2
protection(noun, vigilance, garrison)
2
ranger
2
vigil(noun, case, watch, overlook, guard)
2
warder(noun, keeper)
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APASmart Define. (2016). sentinel thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sentinel/thesaurus/synonyms
ChicagoSmart Define. 2016. "sentinel thesaurus" https://smartdefine.org/sentinel/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, sentinel thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sentinel/thesaurus/synonyms>.
MLASmart Define. "sentinel thesaurus" 20 March 2016. Web. 22 September 2026. <https://smartdefine.org/sentinel/thesaurus/synonyms>