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