energy

noun
en·​er·​gy | \ ˈe-nər-jē How to pronounce energy (audio) \
plural energies

Definition of energy

1a : dynamic quality narrative energy
b : the capacity of acting or being active intellectual energy
c : a usually positive spiritual force the energy flowing through all people
2 : vigorous exertion of power : effort investing time and energy
3 : a fundamental entity of nature that is transferred between parts of a system in the production of physical change within the system and usually regarded as the capacity for doing work
4 : usable power (such as heat or electricity) also : the resources for producing such power

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Synonyms for energy

Synonyms

aura, chi (or ch'i), ki, vibe(s), vibration(s)

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Choose the Right Synonym for energy

power, force, energy, strength, might mean the ability to exert effort. power may imply latent or exerted physical, mental, or spiritual ability to act or be acted upon. the awesome power of flowing water force implies the actual effective exercise of power. used enough force to push the door open energy applies to power expended or capable of being transformed into work. a worker with boundless energy strength applies to the quality or property of a person or thing that makes possible the exertion of force or the withstanding of strain, pressure, or attack. use weight training to build your strength might implies great or overwhelming power or strength. the belief that might makes right

Examples of energy in a Sentence

The kids are always so full of energy. They devoted all their energy to the completion of the project. They devoted all their energies to the completion of the project. She puts a lot of energy into her work. The newer appliances conserve more energy.
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Recent Examples on the Web

This is the modern witch: an incense-burning, moon-loving, energy-working feminist who’s all about good vibes and fits in cleansing rituals between class and a waitressing job. Anna Bauman, Detroit Free Press, "Crystals, healing, acceptance: Inside the world of Michigan's witches," 2 Aug. 2019 Six luxury residences exhibiting energy-efficient building techniques, top-of-the-line appliances and popular trends in indoor and outdoor living spaces. oregonlive.com, "2019 Street of Dreams: A new farmhouse with his and her sheds rises in Wilsonville," 1 Aug. 2019 The administration spent months soliciting input on its plans to expand energy extraction and other activities on two areas in southern Utah that were restricted under previous presidents. Anchorage Daily News, "Trump officials say a new plan will protect Bears Ears. Others call it ‘salt in an open wound.’," 26 July 2019 For two years in a row, Sonoma Raceway — which is celebrating its 50th anniversary — has hosted an event called the Shell Eco-marathon, inviting 1,000 high school and college students to build energy-efficient vehicles. Elena Shao, SFChronicle.com, "Car racing doesn’t sound eco-friendly, but Sonoma Raceway wants to change that," 26 July 2019 But the Eaton’s list of must-dos included two things: make the home more energy-efficient and create an outdoor entertaining space. Lennie Omalza, The Courier-Journal, "Al fresco backyard makes this St. Matthews home an entertainment mecca," 25 July 2019 Small emission cuts can be made by producing cement in a more energy-efficient manner, but a large portion of its carbon dioxide comes from the chemical reactions that create the substance itself. Irina Ivanova, CBS News, "Cement is a huge greenhouse gas emitter -- investors want to change that," 23 July 2019 The lights are more energy-efficient and can be instantly switched on and off, similar to how a light switch can control all the lights in a living room at once. Giana Han, baltimoresun.com, "Ravens roll out $120 million renovations aimed at getting fans off the couch and into M&T Bank Stadium," 23 July 2019 Yosemite has invested in a number of other energy-efficient upgrades. Jordyn Grzelewski, cleveland.com, "Cleveland won them over: Former Florida couple invest in revitalizing Buckeye-Shaker neighborhood," 21 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'energy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of energy

1783, in the meaning defined at sense 1a

History and Etymology for energy

Late Latin energia, from Greek energeia activity, from energos active, from en in + ergon work — more at work

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Statistics for energy

Last Updated

8 Aug 2019

Look-up Popularity

Time Traveler for energy

The first known use of energy was in 1783

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More Definitions for energy

energy

noun

English Language Learners Definition of energy

: ability to be active : the physical or mental strength that allows you to do things
: natural enthusiasm and effort
: usable power that comes from heat, electricity, etc.

energy

noun
en·​er·​gy | \ ˈe-nər-jē How to pronounce energy (audio) \
plural energies

Kids Definition of energy

1 : ability to be active : strength of body or mind to do things or to work The children … were tired and hardly had energy enough to walk.— E. B. White, Charlotte's Web
2 : strong action or effort He puts a lot of energy into his work.
3 : usable power or the resources (as oil) used to produce usable power Our new dryer uses a lot less energy.

energy

noun
en·​er·​gy | \ ˈen-ər-jē How to pronounce energy (audio) \
plural energies

Medical Definition of energy

2 : the capacity for doing work

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More from Merriam-Webster on energy

Thesaurus: All synonyms and antonyms for energy

Spanish Central: Translation of energy

Nglish: Translation of energy for Spanish Speakers

Britannica English: Translation of energy for Arabic Speakers

Comments on energy

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