(n): a large and densely populated urban area; may include several independent administrative districts
(n): a journey or route all the way around a particular place or area
(n): the act of traveling from one place to another
(n): a time for working (after which you will be relieved by someone else)
(n): the time period during which you are at work
(n): a period of time spent in military service
(n): an amount of time
tour
(v): make a tour of a certain place
(v): undertake a journey or trip