From WordNet (r) 3.0 (2006):
conserve
n 1: fruit preserved by cooking with sugar [syn: conserve,
preserve, conserves, preserves]
v 1: keep constant through physical or chemical reactions or
evolutionary change; "Energy is conserved in this process"
2: 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" [syn: conserve,
preserve, maintain, keep up]
3: use cautiously and frugally; "I try to economize my spare
time"; "conserve your energy for the ascent to the summit"
[syn: conserve, husband, economize, economise] [ant:
blow, squander, waste]
4: preserve with sugar; "Mom always conserved the strawberries
we grew in the backyard"