conserve

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

conserves preserves preserve maintain keep up economize husband economise

squander waste blow

conserved conserves