keep in safety and protect from harm, decay, loss, or destruction; "We preserve these archeological findings"; "The old lady could not keep up the building"; "children must be taught to conserve our national heritage"; "The museum curator conserved the ancient manuscripts"安全に保ち、損害または腐敗、損失、破壊を防ぐ護持
例:children must be taught to conserve our national heritage 子供たちに我々の国家遺産を保存することを教えなければならない
keep constant through physical or chemical reactions or evolutionary change; "Energy is conserved in this process"物理または化学反応または進化を通じて一定を保つ保存
use cautiously and frugally; "I try to economize my spare time"; "conserve your energy for the ascent to the summit"用心深く質素に使用する節約