Read the dictionary definition of tour. All definitions for this word.
1. a journey or route all the way around a particular place or area
1. they took an extended tour of Europe
2. we took a quick circuit of the park
3. a ten-day coach circuit of the island
2. a time period for working (after which you will be relieved by someone else)
1. it's my go
2. a spell of work
3. a period of time spent in military service
4. make a tour of a certain place
1. We toured the Provence this summer