Keywords: again, pardon, repeat, repetition, revision, review, revise, repetitive, frequently, over and over
Found 2 variants for this sign (click on video to enlarge):
Sign Definition
As a Noun
                                            1. A performance of an act multiple times. English = repetition.
                                          
                                          
                                        
                                            2. The act of reading or studying something again in order to remember it better or learn it more thoroughly. English = revision, review.
                                          
                                          
                                        As a Verb or Adjective
                                            1. To do an action again. English = repeat.
                                          
                                          
                                        
                                            2. To read or do things again in order to learn them thoroughly. English = revise, review.
                                          
                                          
                                        
                                            3. Of an event or situation, to happen many times, especially in the same way so as to be boring and uninteresting. English = (be) repetitive.
                                          
                                          
                                        Interactive
                                            1. [Simple form, not the variants}, used to ask someone to repeat something that they have just told you, especially if you did not see it or hear it clearly. English = 'Pardon?', 'Can you repeat that?'
                                          
                                          
                                        As Modifier
                                            1.  Used to describe doing something or something happening one more time or on another occasion. English = again.
                                          
                                          
                                        
                                            2. Used immediately next to a verb to mean the action happens many times and most of the time. English = frequently.
                                          
                                          
                                        
                                            3. Used immediately next to a verb to mean the action happens several times, usually without much or any change. English = again and again, repetitively, over and over.
                                          
                                          
                                        Note
                                            1. The variants all involve sideways movement and/or multiple iterations. They are strongly associated with ‘repeated action over time’.
                                          
                                          
                                         
                  
                      