What does Energy mean?

Definitions for Energy
ˈɛn ər dʒien·er·gy

This dictionary definitions page includes all the possible meanings, example usage and translations of the word Energy.

Princeton's WordNet

  1. energy, free energynoun

    (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs

    "energy can take a wide variety of forms"

  2. energy, vigor, vigour, zipnoun

    forceful exertion

    "he plays tennis with great energy"; "he's full of zip"

  3. energy, push, get-up-and-gonoun

    enterprising or ambitious drive

    "Europeans often laugh at American energy"

  4. energy, muscularity, vigor, vigour, vimnoun

    an imaginative lively style (especially style of writing)

    "his writing conveys great energy"; "a remarkable muscularity of style"

  5. energy, vim, vitalitynoun

    a healthy capacity for vigorous activity

    "jogging works off my excess energy"; "he seemed full of vim and vigor"

  6. energynoun

    any source of usable power

    "the DOE is responsible for maintaining the energy policy"

  7. Department of Energy, Energy Department, Energy, DOEnoun

    the federal department responsible for maintaining a national energy policy of the United States; created in 1977


  1. energynoun

    The impetus behind all motion and all activity.

  2. energynoun

    The capacity to do work.

  3. energynoun

    A quantity that denotes the ability to do work and is measured in a unit dimensioned in mass × distanceu00B2/timeu00B2 (MLu00B2/Tu00B2) or the equivalent.


  4. energynoun

    An intangible, modifiable force (often characterized as either 'positive' or 'negative') believed to emanate from a person, place or thing and which is (or can be) preserved and transferred in human interactions; shared mood or group habit; a vibe.

Samuel Johnson's Dictionary

  1. ENERGYnoun

    Etymology: ἐνέϱγεια.

    They are not effective of any thing, nor leave no work behind them, but are energies merely; for their working upon mirrours, and places of echo, doth not alter any thing in those bodies. Francis Bacon.

    Whether with particles of heav’nly fire
    The God of nature did his soul inspire;
    Or earth, but new divided from the sky,
    And pliant still, retain’d th’ ethereal energy. Dryden.

    God thinketh with operation infinitely perfect, with an omnipotent as well as an eternal energy. Nehemiah Grew, Cosmol. Sac.

    Beg the blessed Jesus to give an energy to your imperfect prayers, by his most powerful intercession. George Smalridge, Serm.

    What but God!
    Inspiring God! who, boundless spirit all,
    And unremitting energy, pervades,
    Adjusts, sustains, and agitates the whole. James Thomson, Spring.

    Matter, though divided into the subtilest parts, moved swiftly, is senseless and stupid, and makes no approach to vital energy. John Ray, on the Creation.

    How can concussion of atoms beget self-consciousness, and other powers and energies that we feel in our minds? Richard Bentley.

    Who did ever, in French authors, see
    The comprehensive English energy. Wentworth Dillon.

    Swift and ready, and familiar communication is made by speech; and, when animated by elocution, it acquires a greater life and energy, ravishing and captivating the hearers. William Holder.

    Many words deserve to be thrown out of our language, and not a few antiquated to be restored, on account of their energy and sound. Jonathan Swift.


  1. Energy

    In physics, energy (from Ancient Greek: ἐνέργεια, enérgeia, “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not created or destroyed. The unit of measurement for energy in the International System of Units (SI) is the joule (J). Common forms of energy include the kinetic energy of a moving object, the potential energy stored by an object (for instance due to its position in a field), the elastic energy stored in a solid object, chemical energy associated with chemical reactions, the radiant energy carried by electromagnetic radiation, and the internal energy contained within a thermodynamic system. All living organisms constantly take in and release energy. Due to mass–energy equivalence, any object that has mass when stationary (called rest mass) also has an equivalent amount of energy whose form is called rest energy, and any additional energy (of any form) acquired by the object above that rest energy will increase the object's total mass just as it increases its total energy. Human civilization requires energy to function, which it gets from energy resources such as fossil fuels, nuclear fuel, or renewable energy. The Earth's climate and ecosystems processes are driven by the energy the planet receives from the Sun (although a small amount is also contributed by geothermal energy).


  1. energy

    Energy is a fundamental concept in physics that refers to the capacity of a system to do work or produce a change. It can exist in different forms, such as kinetic energy (energy of motion), potential energy (stored energy), thermal energy (energy due to temperature), chemical energy (energy stored in chemical bonds), and many others. Energy can be converted from one form to another, but it is never created or destroyed, following the law of conservation of energy.

Webster Dictionary

  1. Energynoun

    internal or inherent power; capacity of acting, operating, or producing an effect, whether exerted or not; as, men possessing energies may suffer them to lie inactive

  2. Energynoun

    power efficiently and forcibly exerted; vigorous or effectual operation; as, the energy of a magistrate

  3. Energynoun

    strength of expression; force of utterance; power to impress the mind and arouse the feelings; life; spirit; -- said of speech, language, words, style; as, a style full of energy

  4. Energynoun

    capacity for performing work


  1. Energy

    In physics, energy is an indirectly observed quantity which comes in many forms, such as kinetic energy, potential energy, radiant energy, and many others; which are listed in this summary article. This is a major topic in science and technology and this article gives an overview of its major aspects, and provides links to the many specific articles about energy in its different forms and contexts. The question "what is energy?" is difficult to answer in a simple, intuitive way, although energy can be rigorously defined in theoretical physics. In the words of Richard Feynman, "It is important to realize that in physics today, we have no knowledge what energy is. We do not have a picture that energy comes in little blobs of a definite amount." However, it is clear that energy is always an indispensable prerequisite for performing mechanical work, and the concept has great importance in natural science. The natural basic units in which energy is measured are those used for mechanical work; they always are equivalent to a unit of force multiplied by a unit of length. Other equivalent units for energy are mass units multiplied by velocity units squared.

Chambers 20th Century Dictionary

  1. Energy

    en′ėr-ji, n. power of doing work: power exerted: vigorous operation: strength: (physics) the term, as applied to a material system, used to denote the power of doing work possessed by that system.—adjs. Energet′ic, -al, having or showing energy: active: forcible: effective.—adv. Energet′ically.—n.pl. Energet′ics, the science of the general laws of energy.—adj. Ener′gic, exhibiting energy.—v.t. En′ergise, to give strength or active force to.—v.i. to act with force:—pr.p. en′ergīsing; pa.p. en′ergīsed.Conservation of energy (see Conservation). [Gr. energeiaen, in, ergon, work.]

The Standard Electrical Dictionary

  1. Energy

    The capacity for doing work. It is measured by work units which involve the exercise of force along a path of some length. A foot-pound, centimeter-gram, and centimeter-dyne are units of energy and work. The absolute unit of energy is the erg, a force of one dyne exercised over one centimeter of space. (See Dyne.) The dimensions of energy are   force (M * L / T^2) * space (L) = M * (L^2 / T^2). Energy may be chemical (atomic or molecular), mechanical, electrical, thermal, physical, potential, kinetic, or actual, and other divisions could be formulated.

Editors Contribution

  1. energyverb

    0.) A unit of measurement equal to the average character amount of space estimated in total natural utterance frequentative to the first recorded SI unit ionizing radiation. 1.) The strength and vitality required for sustained physical or mental activity. 2.) Power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines. 3.) The property of matter and radiation that is manifest as a capacity to perform work; a degree or level of this capacity possessed by something or required by a process.

    The Most High created energy alone, long before we as people became the object of time: which is energy.

    Etymology: El Shaddai

    Submitted by Tehorah_Elyon on October 21, 2023  

  2. energy

    A source of power.

    Everything has energy e.g. people, animals and buildings

    Submitted by MaryC on January 1, 2020  

  3. energy

    Level of expression.

    The energy it took to change the situation was amazing, it was so easy.

    Submitted by MaryC on January 13, 2020  

  4. energy

    The ability and motivation to act or do efficiently

    He always haa the energy to have fun with his wife.

    Submitted by MaryC on January 4, 2020  

  5. energy

    The capacity to do work.

    Energy is the capacity to do work.

    Submitted by MaryC on January 1, 2020  

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'Energy' in Spoken Corpus Frequency: #790

  2. Written Corpus Frequency

    Rank popularity for the word 'Energy' in Written Corpus Frequency: #1523

  3. Nouns Frequency

    Rank popularity for the word 'Energy' in Nouns Frequency: #325

Anagrams for Energy »

  1. greeny

  2. gyrene

How to pronounce Energy?

How to say Energy in sign language?


  1. Chaldean Numerology

    The numerical value of Energy in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of Energy in Pythagorean Numerology is: 2

Examples of Energy in a Sentence

  1. Tom Werner:

    It's inspiring to have leaders in office who squarely put clean energy and the environment as one of the most urgent and top priorities.

  2. Cathy McMorris Rodgers:

    For 227 years, The Energy and Commerce Committee has led on solutions to keep the promise of America, where we have lifted more people out of poverty and led the world in raising people’s standard of living, this Congress , Republicans will continue to honor the committee’s rich history to improve people’s lives and ensure America leads a new era of innovation and entrepreneurship.

  3. Jos Lelieveld:

    When most people think of outdoor air pollution, they tend to think of traffic and industry having the largest impact on global premature mortality, not residential energy emissions and agriculture.

  4. Ramon Pacheco Pardo:

    I think that Russia is going to provide more economic support and energy support to North Korea, oil and gas, certainly but it could also include food... fertilizers, it could be all sorts of economic aid North Korea wants.

  5. Ron DeSantis:

    While the U.S. has many vital national interests – securing our borders, addressing the crisis of readiness within our military, achieving energy security and independence, and checking the economic, cultural, and military power of the Chinese Communist Party – becoming further entangled in a territorial dispute between Ukraine and Russia is not one of them.

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Translations for Energy

From our Multilingual Translation Dictionary

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"Energy." Definitions.net. STANDS4 LLC, 2024. Web. 22 Jun 2024. <https://www.definitions.net/definition/Energy>.

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