Keywords: referee, umpire
Found 1 variant for this sign (click on video to enlarge):
Sign Definition
As a Noun
                                            1.  A person whose job is to make sure that a game is played fairly and that the rules are not broken. English = referee, umpire.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  To control a game and make sure that it is played fairly and that the rules are not broken. English = referee, umpire.
                                          
                                          
                                         
                  
                      