Keywords: loneliness, lonely
Sign Definition
As a Noun
                                            1.  The feeling of unhappiness you have because you are alone or do not have any friends. English = loneliness.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  To be unhappy because you are alone or do not have any friends. English = (be) lonely.
                                          
                                          
                                         
                  
                      