Answer: conserve

AnswerCrossword Clue
CONSERVEProtect from depletion
conserveavoid wasteful or destructive use of conserve natural resources
conservepreserve with sugar
conservemaintain (a quantity) constant during a process of chemical, physical, or evolutionary change conserved DNA sequences
conserveto preserve (to keep safe from harm)
conserveto keep in a safe or sound state he conserved his inheritance
CONSERVEBe frugal with
CONSERVEOpposite of waste
CONSERVEBe green, in a way
CONSERVESave some for later
CONSERVESave soundly
CONSERVEKeep from being wasted.
CONSERVEAntonym of waste.
CONSERVEA kind of jam.
CONSERVEForestall a shortage, perhaps
CONSERVEHusband
CONSERVEUse sparingly