› [U] the state of being healthy or in a satisfactory condition: You should stop smoking for your own good (= for your health). He goes running every day for the good of his health. Modernizing historic buildings can often do more harm than good. The decision has been postponed for the good of all concerned. → Synonym benefit nounUseful or advantageousFit and healthy do sb good B2 to improve someone's health or life: You can't work all the time - it does you good to go out and enjoy yourself sometimes. Take the medicine - it will do you (a power/world of) good (= improve your health a lot).Useful or advantageousFit and healthy