Synonyms: conservation
Definition: the preservation and careful management of the environment and of natural resources
Similar words: saving, preservation
Definition: the activity of protecting something from loss or danger
Synonyms: conservation
Definition: (physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations
Similar words: principle
Definition: a basic truth or law or assumption
Usage: the principles of democracy
Synonyms: preservation, conservation
Definition: an occurrence of improvement by virtue of preventing loss or injury or other change
Similar words: betterment, advance, improvement
Definition: a change for the better; progress in development