Nouns

(n)conserve, preserve, conserves, preservesfruit preserved by cooking with sugar

Verbs

(v)conservekeep constant through physical or chemical reactions or evolutionary change“Energy is conserved in this process”
(v)conserve, preserve, maintain, keep upkeep 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”
(v)conserve, husband, economize, economiseuse cautiously and frugally“I try to economize my spare time”, “conserve your energy for the ascent to the summit”
(v)conservepreserve with sugar“Mom always conserved the strawberries we grew in the backyard”