plural energies
1
a
: 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
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.
Recent Examples on the Web
Corn can provide carbohydrates, which can be vital to deer during the winter for a burst of energy, Edge said, but an increase in carbs can disrupt the animal's gut chemistry and affect digestion, much like giving children a lot of candy bars.
—
Craig Shoup, Nashville Tennessean, 27 Oct. 2025
Tokyo has pledged to reduce the reliance, but says an abrupt cutoff could threaten its energy security.
—Hanako Montgomery, CNN Money, 27 Oct. 2025
Upcycling solid wastes This technique provides a versatile, scalable, and efficient strategy for upcycling solid wastes into high-performance materials for environmental and energy catalysis, as per the study.
—Prabhat Ranjan Mishra, Interesting Engineering, 27 Oct. 2025
When the lines of a CME’s magnetic field and those of the Earth’s magnetic field are pointed in the opposite directions, the CME can unite with the Earth’s magnetosphere and fill it with vast quantities of solar energy.
—Literary Hub, 27 Oct. 2025
See All Example Sentences for energy
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Craig Shoup, Nashville Tennessean, 27 Oct. 2025
Tokyo has pledged to reduce the reliance, but says an abrupt cutoff could threaten its energy security.
—Hanako Montgomery, CNN Money, 27 Oct. 2025
Upcycling solid wastes This technique provides a versatile, scalable, and efficient strategy for upcycling solid wastes into high-performance materials for environmental and energy catalysis, as per the study.
—Prabhat Ranjan Mishra, Interesting Engineering, 27 Oct. 2025
When the lines of a CME’s magnetic field and those of the Earth’s magnetic field are pointed in the opposite directions, the CME can unite with the Earth’s magnetosphere and fill it with vast quantities of solar energy.
—Literary Hub, 27 Oct. 2025
See All Example Sentences for energy
Cite this Entry
“Energy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/energy. Accessed 29 Oct. 2025.
Copy CitationKids Definition
energy
noun
en·er·gy
ˈen-ər-jē 
plural energies
1
: power or ability to be active : strength of body or mind to do things or to work
a teacher of great intellectual energy
2
: natural power exerted with force : lively action
work with energy
3
: the capacity (as of heat, light, or running water) for doing work
4
a
: usable power (as heat or electricity)
b
: a source of energy
especially
: a resource (as oil) used to provide energy
Medical Definition
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