What is the meaning of preserving?

verb

• Keep or maintain in unaltered condition; cause to remain or last.
  • usage: "preserve the peace in the family"; "continue the family tradition"; "Carry on the old traditions"
  • synonyms: continue, uphold, carry on, bear on, preserve
• Keep in safety and protect from harm, decay, loss, or destruction.
  • usage: "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"
  • synonyms: conserve, preserve, maintain, keep up
• To keep up and reserve for personal or special use.
  • usage: "She saved the old family photographs in a drawer"
  • synonyms: save, preserve
• Prevent (food) from rotting.
  • usage: "preserved meats"; "keep potatoes fresh"
  • synonyms: preserve, keep
• Maintain in safety from injury, harm, or danger.
  • usage: "May God keep you"
  • synonyms: keep, preserve
• Keep undisturbed for personal or private use for hunting, shooting, or fishing.
  • usage: "preserve the forest and the lakes"
  • synonyms: preserve