definition of
regret

[1] #1 regret v. [repent, rue] feel remorse for; feel sorry for; be contrite about. wn

[2] #2 regret n. [sorrow, rue, ruefulness] sadness associated with some wrong done or some disappointment; "he drank to drown his sorrows"; "he wrote a note expressing his regret"; "to his rue, the error cost him the game". wn

[3] #3 regret v. feel sad about the loss or absence of. wn

[4] #4 regret v. decline formally or politely; "I regret I can't come to the party". wn

[5] #5 regret v. express with regret; "I regret to say that you did not gain admission to Harvard". wn