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 …

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, …

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

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 …

Efficiency measures how well energy or resources are converted into useful output. Learn how it applies to engines, bodies, plants, economics, and more.

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.

Mar 26, 2026 · Operational efficiency is the ability to reduce costs and maximize output through optimized processes.

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

Definition of efficiency noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.