noun. 
                    undefined
                  
                
                  
                    noun. 
                    A mark or quality, as of distinction, individuality, or authenticity.
                  
                
                  
                    noun. 
                    Great prestige or appeal.
                  
                
                  
                    noun. 
                    A seal on a document, such as a letter.
                  
                
                  
                    noun. 
                    undefined
                  
                
                  
                    noun. 
                    A commemorative design stamped on an envelope to mark a postal or philatelic event.
                  
                
                  
                    noun. 
                    A motto forming part of a postal cancellation.
                  
                
                  
                    noun. 
                    A kind of wafer capsule formerly used by pharmacists for presenting an unpleasant-tasting drug.