Regenerate/rɪˈdʒenəreɪt/ Definition 1 of 5Pro Tip 1/2Not Instant Regeneration implies a process that might take some time. The forest will regenerate over the years after the fire. Pro Tip 2/2Positive Change Using 'regenerate' often suggests improvement from a previous, less desirable state. We are working to regenerate the old garden to its former beauty.