showing the wearing effects of overwork or care or suffering; "looking careworn as she bent over her mending"; "her face was drawn and haggard from sleeplessness"; "that raddled but still noble face"; "shocked to see the worn look of his handsome young face"- Charles Dickens
make a counterattack and return like for like, especially evil for evil; "The Empire strikes back"; "The Giants struck back and won the opener"; "The Israeli army retaliated for the Hamas bombing"