| sentinel(noun, guard, warning, safety, protector) |
| sentry(noun, guard, warning, safety, protector) |
| guard(noun, guard, protector, keeper, lookout) |
| watch(noun, guard, warning, lookout, sentry) |
| lookout(noun, guard, warning, sentry, custodian) |
| watcher(noun, guard, lookout) |
| concierge(noun, person, carry, job, service) |
| picket(noun, guard, warning, lookout, sentry) |
| guardian(noun, protector) |
| custodian(noun, guard, keeper, lookout, sentry) |
| keeper(noun, guard, keeper, lookout, sentry) |
| patrol(noun, guard, warning, lookout, sentry) |
| ward(noun, guard, protector) |
| patrolman(noun, guard, warning, safety) |
| scout(noun, guard, warning, safety) |
| janitorial |
| porter(noun, carry, job, service) |
| security guard(noun, expression, idiom, guard) |
| caretaker(noun, guard) |
| janitor(noun, carry, job, service) |