variants: or re-green
regreened or re-greened; regreening or re-greening
Definition of regreen
: to make green again especially : to restore (barren, degraded, or deforested land) to a healthy ecological state by planting vegetation (such as trees, shrubs, grasses, or sustainable crops) often in conjunction with improvements in soil fertility and water retention … aims to re-green the concrete jungle and protect existing trees from the bulldozers of development. — Bill Lohmann The hope is that with the eventual regreening of the island the rare and endangered green parrot, almost wiped out on Norfolk … will be re-established on Philip. — Stuart Inder Tree planting has led to the re-greening of as much as 3 million hectares of land in Niger, enabling some 250,000 hectares to be farmed again. — Andy Coghlan regreening efforts a regreening program
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