Keywords: invention, concoction, fantasy, fiction, guesswork, speculation, make up (invent), invent, concoct, contrive, ad lib, guess
Sign Definition
As a Noun
                                            1.  A story or idea which is made up and not true. Its purpose is often dishonest. It is like a lie but it is not as bad or as serious. English = invention, concoction, contrivance.
                                          
                                          
                                        
                                            2.  A situation or event that you think about or imagine, although it is unlikely to happen or be true. English = fantasy, make believe.
                                          
                                          
                                        
                                            3.  A story or stories about imaginary people and events, especially when written down in books. English = fiction.
                                          
                                          
                                        
                                            4.  The process or result of trying to guess something without knowing all the facts. English = guesswork, speculation.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  To make up an idea or story which is not true, often for dishonest reasons. English = make up, invent, concoct, contrive.
                                          
                                          
                                        
                                            2.  To think imaginatively about something for creative pleasure or because you would like it to happen even though it is unlikely to happen. English = fantasise, make believe.
                                          
                                          
                                        
                                            3.  To make up a story, based on something that actually happened, but with some details changed or added. English = fictionalise.
                                          
                                          
                                        
                                            4.  To say something in a play or speech which has not been planned or prepared beforehand; to give an answer when you do not know if it is correct. English = ad lib; guess.
                                          
                                          
                                         
                  
                      