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

Pay attention to the common signs of overtraining: feeling drained, lack of energy, constant soreness, sudden drop in performance, and lack of motivation. SELF, "Your Guide to Increasing the Weight You Lift," 10 May 2019 These are manufactured to be more energy-efficient than older options and meet Energy Star requirements. Good Housekeeping, "GH Seal Spotlight: Earthwise Windows," 5 Apr. 2019 Construction was halted in 1985 due to low energy prices and only resumed in 2007. Avery Thompson, Popular Mechanics, "The Alexandria Ocasio-Cortez 'Green New Deal' Wants to Get Rid of Nuclear Power. That's a Great Idea.," 8 Feb. 2019 Lime's been on a roll this year and is going into 2019 with a lot of money, energy, and good publicity. Meredith Carey, Condé Nast Traveler, "Google Maps Now Shows You How Long It Would Take to Go By Scooter," 13 Dec. 2018 There were pockets of darkness, victims of the spike in energy prices or the drop in population. Andrew Liptak, The Verge, "Two unlikely cops are paired up to solve murders in a war-torn Tokyo in Ninth Step Station," 8 Dec. 2018 At the heart of the multibuilding complex is a cogeneration plant that recovers wasted heat to make the buildings 70 percent more energy efficient. Megan Mcintyre, Hana Hong, Marie Claire, "11 New Innovations in Sustainable Beauty from Around the Globe," 18 Apr. 2019 Since then, she's focused all of her energy on putting them first, leaving little time for self-care. Stacia Affelt, Good Housekeeping, "You Won't Believe This Mom's Incredible Head-to-Toe Makeover," 9 Apr. 2019 And so Apple is redirecting its energies—and the extremely valuable resource of Apple Event Stage Time—in a direction with promising potential for profit, and more importantly the growth of profit. Eric Limer, Popular Mechanics, "For Apple's Big Event on Monday, Hardware Is Just a Sideshow," 21 Mar. 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

16 May 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

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