Keywords: labour, toil, exertion, travail, laborious, busy, effort
Sign Definition
As a Noun
                                            1. Physical or mental work which is difficult and very hard, even painful. English = labour, toil, exertion. Formal English = travail.
                                          
                                          
                                        
                                            2. An action or job that requires an unusual amount of physical or mental energy to do it. English = effort.
                                          
                                          
                                        As a Verb or Adjective
                                            1. To work hard or a lot, to make an effort.
                                          
                                          
                                        
                                            2. Of an action or job, to require or take a lot of effort to do. English = (be) laborious.
                                          
                                          
                                        
                                            3. Of a person, to be working hard or concentrating on a task, so that you are not free to do anything else. English = (be) busy.
                                          
                                          
                                         
                  
                      