Orderly

1. A street sweeper.
2. According to due order; regularly; methodically; duly.
3. Being on duty; keeping order; conveying orders.
4. Performed in good or established order; well-regulated.
5. Observant of order, authority, or rule; hence, obedient; quiet; peaceable; not unruly; as, orderly children; an orderly community.
6. A noncommissioned officer or soldier who attends a superior officer to carry his orders, or to render other service.
7. Conformed to order; in order; regular; as, an orderly course or plan.