What is the meaning of savings?

noun

• An act of economizing; reduction in cost.
  • usage: "it was a small economy to walk to work every day"; "there was a saving of 50 cents"
  • synonyms: economy, saving
• Recovery or preservation from loss or danger.
  • usage: "work is the deliverance of mankind"; "a surgeon's job is the saving of lives"
  • synonyms: rescue, deliverance, delivery, saving
• The activity of protecting something from loss or danger.
  • synonyms: preservation, saving
• A fund of money put by as a reserve.
  • synonyms: nest egg