noun
                                                sadness associated with some wrong done or some disappointment
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - he drank to drown his sorrows
- he wrote a note expressing his regret
- to his rue, the error cost him the game
 
                                                                                        
                                                verb
                                                feel remorse for
                                                                                                Synonyms
                                                
                                                
                                                                                                Examples
                                                
                                                                                                        - feel sorry for
- be contrite about
 
                                                                                        
                                                verb
                                                feel sad about the loss or absence of
                                                
                                                                                             
                                                                                        
                                                verb
                                                decline formally or politely
                                                
                                                                                                Examples
                                                
                                                                                                        - I regret I can't come to the party
 
                                                                                        
                                                verb
                                                express with regret
                                                
                                                                                                Examples
                                                
                                                                                                        - I regret to say that you did not gain admission to Harvard