depopulation
noun/ˌdiːˌpɒpjuˈleɪʃn/
/ˌdiːˌpɑːpjuˈleɪʃn/
[uncountable]- a reduction in the number of people living in a place
- The present trend of depopulation of English cities could be reversed in the next 20 years.
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depopulation