Cost

n.
  1. The amount paid, charged, or engaged to be paid, for anything bought or taken in barter; charge; expense; hence, whatever, as labor, self-denial, suffering, etc., is requisite to secure benefit.
  2. Loss of any kind; detriment; pain; suffering.
  3. Bill of costs .
    See under Bill.
    Cost free ,
    without outlay or expense.