warden

1 a person or group that watches over someone or something in his role as warden of the school, a principal must provide a safe environment for the students Synonyms custodian, guardian, keeper, lookout, minder, picket, sentinel, sentry, guard, warder, watch, watcher, watchmanRelated Words observer, patrol, spotter, surveillant, watchdog; bodyguard, convoy, defender, escort, honor guard; gatekeeper; hack [slang]

2 a person who takes care of a property sometimes for an absent owner served as warden for the country estate Synonyms caretaker, guardian, janitor, keeper, custodian, watchmanRelated Words cocurator, curator; sexton, steward