Keywords: need, necessity, necessary
Found 3 variants for this sign (click on video to enlarge):
Sign Definition
As a Noun
                                            1.  The strong feeling that you must have something or must do something. English = need.
                                          
                                          
                                        
                                            2. The need to do something. English = necessity.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  To be necessary to have or do something; to have a strong feeling that you must have something or must do something. English = need.
                                          
                                          
                                        
                                            2. To be needed to get the result or the effect that you want. English = (be) necessary.
                                          
                                          
                                        Note
                                            1. The variants with repeated movements are more strongly associated with ‘necessity’ or ‘necessary’.
                                          
                                          
                                         
     
                  
                      