Keywords: sharp, sharpen
Sign Definition
As a Verb or Adjective
                                            1.  Of a knife etc., to have a very thin edge that is good for cutting things. English = (be) sharp.
                                          
                                          
                                        
                                            2.  To make a knife or other cutting implement sharp. English = sharpen.
                                          
                                          
                                        
                                            3.  Of someone's mind or intelligence, to be very good, clever and quick. English = (be) sharp, (be) quick witted.
                                          
                                          
                                         
                  
                      