fieldwork
noun
                                                                                                                            
                                                            field·work
                    
                                                                                                              
                                                                                                                                  ˈfēld-ˌwərk 
                                                      
                                                          
            1
                    
                                          
              
          
                                                      : a temporary fortification thrown up by an army in the field                                      
                
                    
2
                    
                                          
              
          
                                                      : work done in the field (as by students) to gain practical experience and knowledge through firsthand observation                                      
                
                    
3
                    
                                          
              
          
                                                      : the gathering of anthropological or sociological data through the interviewing and observation of subjects in the field                                      
                
                    
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  Merriam-Webster unabridged




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