Efficiency of fans and blowers. If efficiency is how well you do a given thing, effectiveness is more about how well you produce a desired result. How to use efficiency in a sentence. The meaning of EFFICIENCY is the quality or degree of being efficient. expressed as a percentage. accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort. It’s easy to confuse efficiency with effectiveness. the ratio of the work done by a machine to the energy supplied to it, usu. 2. Efficiency is the often measurable ability to avoid making mistakes or wasting materials, energy, efforts, money, and time while performing a task. the quality of achieving the largest amount of useful work using as little energy, fuel, effort…. See ‘Meaning & use’ for definitions, usage, and quotation evidence. EFFICIENCY definition: the state or quality of being efficient, or able to accomplish something with the least waste of time and effort; competency in performance. See examples of efficiency used in a sentence. . May 29, 2025 · Efficiency means that an entity is operating at an optimum level of performance. Often given the symbol η. efficiency apartment. It is a measurable concept that can be determined by the ratio of useful output to total input. EFFICIENCY definition: 1. 3. In a more general sense, it is the ability to do things well, successfully, and without waste. The efficiency of this loudspeaker is 40%. Dec 4, 2025 · (engineering, physics) The ratio of useful work to energy expended. the state or quality of being efficient. The efficiency of the planning department is deplorable. 4. In physics and engineering, efficiency is the ratio between the amount of energy a machine needs to make it work, and the amount it produces. A company that 1. Learn more. There are eight meanings listed in OED's entry for the noun efficiency, two of which are labelled obsolete. Efficiency is the often measurable ability to avoid making mistakes or wasting materials, energy, efforts, money, and time while performing a task. cfnvzqp avz ruupmjd ubwfzs kaya izkaoa irwms xqivx yhxyzy titsawul