efficiency

Universal Words noun 1 [U] the quality of doing sth well with no waste of time or money: improvements in efficiency at the factory * I was impressed by the efficiency with which she handled the crisis. 2 (efficiencies) [pl.] ways of wasting less time and money or of saving time or money: We are looking at our business to see where savings and efficiencies can be made. 3 [U] (technical) the relationship between the amount of energy that goes into a machine or an engine, and the amount that it produces