quality - the standard of something as measured against other things of a similar kind, cost - an amount that has to be paid or spent to buy or obtain sg., negotiate - to obtain or bring about decision, delivery - the action of delivering letters, packages or ordered goods, retention - the continued possession, use or control of sg., goal - an aim or desired result, the object of a person's ambition or effort, flow - the steady, continuous stream of sg., retirement - the action of leaving one's job and ceasing to work,

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