To revitalize means to give new life, energy or vigor to something that has become stagnant, dull or lacking in vitality. It can refer to an action taken to restore something to its original condition or to bring about a renewal of interest and activity. The term is often used when talking about revitalizing a community, business, or organization by bringing new ideas, investment, or development to the area. Revitalize can also be used in reference to personal well-being, as it means to restore one's energy, health, or enthusiasm after a period of decline or lack of activity.