Keywords: book, open (book)
Sign Definition
As a Noun
                                            1.  A number of pieces of paper, usually with words printed on them, which are fastened together and fixed inside a cover of stronger paper or cardboard. It contains information, stories, pictures, or poetry. English = book.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  To open a book.
                                          
                                          
                                         
                  
                      