32
guard(noun, verb, keep, defend, watch)
30
sentry(noun, case, watch, overlook, guard)
27
watch(noun, verb, support, cover, keep)
25
watchman(noun, guard, warning, safety, keeper)
20
lookout(noun, place, watch, guard, awareness)
18
scout(noun, case, watch, guard, warning)
17
picket(noun, person, watch, guard, awareness)
17
protector(noun, watch, guard, awareness, safeguard)
16
patrol(noun, case, watch, overlook, guard)
13
spotter(noun, case, watch, guard, sentry)
13
guardian(noun, watch, guard, escort, protector)
7
keeper(noun, watch, guard, champion, protector)
6
custodian(noun, watch, guard, safeguard, champion)
6
lookout man(noun, expression, idiom)
6
watchdog(noun, guard, warning, safeguard, safety)
6
look-out
5
defender(noun, watch, guard, shield, safeguard)
5
guardsman
5
patrolman(noun, warning, safety)
5
ward(noun, case, watch, overlook, guard)
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APASmart Define. (2016). Sentinel thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sentinel/thesaurus/synonyms
ChicagoSmart Define. 2016. "Sentinel thesaurus" https://smartdefine.org/sentinel/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, Sentinel thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sentinel/thesaurus/synonyms>.
MLASmart Define. "Sentinel thesaurus" 20 March 2016. Web. 20 September 2026. <https://smartdefine.org/sentinel/thesaurus/synonyms>