1. conservation

noun. (ˌkɑːnsɝˈveɪʃən) An occurrence of improvement by virtue of preventing loss or injury or other change.
Synonyms
betterment preservation improvement advance
Antonyms
demote retreat fall back regress worsen

2. conservation

noun. (ˌkɑːnsɝˈveɪʃən) The preservation and careful management of the environment and of natural resources.
Synonyms
saving preservation conservancy oil conservation water conservation soil conservation
Antonyms
nonequivalence reality principle pleasure principle yang yin

3. conservation

noun. (ˌkɑːnsɝˈveɪʃən) (physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations.
Synonyms
first law of thermodynamics law of conservation of matter law of conservation of energy law of conservation of mass conservation of mass space-reflection symmetry conservation of energy mirror symmetry parity conservation of electricity principle conservation of charge conservation of parity conservation of matter conservation of momentum
Antonyms
evil wasteful decline stay in place recede
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