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English definition of “preservation”

preservation

noun [U]  /ˌprez·ərˈveɪ·ʃən/ us  
the act of keeping something as it is, esp. in order to prevent it from decaying or to protect it from being damaged or destroyed: Janet is very interested in historic preservation (= protecting places of historic importance).
preservationist
noun [C]  /ˌprez·ərˈveɪ·ʃə·nɪst/ us  
Preservationists were outraged at the proposal to tear down a historic theater.
(Definition of preservation from the Cambridge Academic Content Dictionary © Cambridge University Press)
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