Keywords: trapdoor, hatch
Sign Definition
As a Noun
                                            1.  A small horizontal door in a floor, ceiling, or stage. English = trapdoor.
                                          
                                          
                                        
                                            2.  An opening in a deck of a ship, which is used for people to come on deck or go below, or during loading and unloading cargo. English = hatch.
                                          
                                          
                                        As a Verb or Adjective
                                            1.  To open a trapdoor.
                                          
                                          
                                         
                  
                      