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  1. Efficiency - Wikipedia

    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, …

  2. EFFICIENCY Definition & Meaning - Merriam-Webster

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

  3. EFFICIENCY Definition & Meaning | Dictionary.com

    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 …

  4. EFFICIENCY | definition in the Cambridge English Dictionary

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

  5. EFFICIENCY definition and meaning | Collins English Dictionary

    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.

  6. efficiency - Wiktionary, the free dictionary

    3 days ago · efficiency (countable and uncountable, plural efficiencies) The extent to which a resource is used for the intended purpose. antonyms quotations Antonyms: inefficiency, wastefulness

  7. What is efficiency? - howengineeringworks.com

    Nov 29, 2025 · Efficiency is an important concept in physics, engineering, and everyday life because it helps us understand how well a machine, system, or process performs. Whenever we use a …

  8. How Efficiency Is Measured - Investopedia

    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...

  9. efficiency, n. meanings, etymology and more | Oxford English Dictionary

    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.

  10. Efficiency Definition & Meaning | Britannica Dictionary

    EFFICIENCY meaning: 1 : the ability to do something or produce something without wasting materials, time, or energy the quality or degree of being efficient (technical); 2 : efficiency apartment