Efficiency is the often measurable ability to avoid making mistakes or wasting materials, energy, efforts, money, and time while performing a task. In a more general sense, it is the ability to do things well, …

The meaning of EFFICIENCY is the quality or degree of being efficient. How to use efficiency in a sentence.

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.

EFFICIENCY definition: 1. the quality of achieving the largest amount of useful work using as little energy, fuel, effort…. Learn more.

May 29, 2025 · Efficiency means that an entity is operating at an optimum level of performance. It is a measurable concept that can be determined by the ratio of useful output to total input. A company that...

There are eight meanings listed in OED's entry for the noun efficiency, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

1. the state or quality of being efficient. 2. accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort. 3. the ratio of the work done by a machine to the energy …

Dec 4, 2025 · (engineering, physics) The ratio of useful work to energy expended. Often given the symbol η. The efficiency of this loudspeaker is 40%. The efficiency of the planning department is …

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 …

It’s easy to confuse efficiency with effectiveness. If efficiency is how well you do a given thing, effectiveness is more about how well you produce a desired result.