Save, limit or ration
conserve: synonyms: preserve, save, keep, protect, safeguard, take care of, support, maintain, sustain, store resource: synonyms: reserve, supply, store, source, means
Conserve
They are synonyms.
Synonyms
Why should you conserve wildlife?
To conserve the environment.
we have to conserve water to save our planet
Relative and kin are synonyms.
They are synonyms.
to conserve heat
The opposite of conserve would be to squander or waste.
we can conserve our santuaries by not killing the animals for our use.