Keywords: why, because, since, as, cause, reason
Sign Definition
As a Noun
                                            1.  The thing that makes an event happen. English = cause.
                                          
                                          
                                        
                                            2.  The fact or situation which explains why something happens or exists. English = reason.
                                          
                                          
                                        As Modifier
                                            1.  Used to link or join two sentences of which the second is the reason or cause of the event or events described in the first. English = because.
                                          
                                          
                                        
                                            2.  Used to introduce the reason, cause or explanation of something. English = because, since, as.
                                          
                                          
                                        As Question
                                            1.  Used alone or at the beginning, end, or at both the beginning and end, of a sentence to ask about the reason or cause of something. English = why.
                                          
                                          
                                        
                                            2.  Often used with WHAT to ask for the reason you have been asked or ordered to do something when you are reluctant to do it. English = 'What's the reason?', 'What for?'
                                          
                                          
                                         
                  
                      