First Peek Ever Inside America's Most Successful Movie Theater. It's in NYC (of course), but the other reasons for its success aren't so obvious: there are no special tricks (gourmet meals aren't here), lots of unusual choices (art films!), and a commando-like operation.
Wiktionary(5.00 / 1 vote)Rate this definition: 1  conservation(Noun) The act of preserving, guarding, or protecting; the keeping (of a thing) in a safe or entire state; preservation. 2  conservation(Noun) A wise use of natural resources.
Definition of conservation for English Language Learners. : 1  the protection of animals, plants, and natural resources. : 2  the careful use of natural resources (such as trees, oil, etc.) to prevent them from being lost or wasted. : 3  the things that are done to keep works of art or things of historical importance in good condition.