in artillery usage, a tactical mission in which one artillery unit augments the fire of another artillery unit. Reinforcing is not used by aviation forces.
                                                            
                                                     
                        
                                                
                        
                        
                            reinforcing bar (rebar): round mild steel rod to increase tensile strength of concrete
                                                            
                                                     
                        
                                                
                        
                        
                            Rebar placed into a cast stone part during the manufacturing process to augment the part during handling or to enable it to carry a structural load (i.e. lintel).