Energy is the ability and strength to do active physical things and the feeling that you are full of physical power and life.
He was saving his energy for next week's race in Belgium.
We try to boost our energy by eating.
Synonyms: strength, might, force, power More Synonyms of energy
2. uncountable noun
Energy is determination and enthusiasm about doing things.
[approval]
At 54 years old her energy and looks are magnificent.
You have drive and energy for those things you are interested in.
Synonyms: liveliness, life, drive, fire More Synonyms of energy
3. countable noun [usually plural]
Your energies are your efforts and attention, which you can direct towards a particular aim.
She had started to devote her energies to teaching rather than performing.
We must concentrate our energies on treating addiction first.
4. uncountable noun [oft NOUN noun]
Energy is the power from sources such as electricity and coal that makes machines work or provides heat.
...those who favour nuclear energy.
Oil shortages have brought on an energy crisis.
It doesn't take much to improve the energy efficiency of your home.
Synonyms: power More Synonyms of energy
energy in British English
(ˈɛnədʒɪ)
nounWord forms: plural-gies
1.
intensity or vitality of action or expression; forcefulness
2.
capacity or tendency for intense activity; vigour
3.
vigorous or intense action; exertion
4. physics
a.
the capacity of a body or system to do work
b.
a measure of this capacity, expressed as the work that it does in changing to somespecified reference state. It is measured in joules (SI units)
Symbol: E
5.
a source of power
See also kinetic energy, potential energy
Word origin
C16: from Late Latin energīa, from Greek energeia activity, from energos effective, from en-2 + ergon work
energy in American English
(ˈɛnərdʒi)
nounWord forms: pluralˈenergies
1.
force of expression or utterance
2.
a.
potential forces; inherent power; capacity for vigorous action
b. [often pl.]
such forces or power, esp. in action
to apply all one's energies
3.
strength or power efficiently exerted
4.
a.
those resources, as petroleum, coal, gas, wind, nuclear fuel, and sunlight, from which energy in the form of electricity, heat, etc. can be produced
b.
the available supply of such usable resources
an energy shortage
5. Physics
the capacity for doing work
abbrev. E see also matter (sense 2)
SIMILAR WORDS: strength
Word origin
LL energia < Gr energeia < energēs, active, at work < en-, in + ergon, work
energy in Mechanical Engineering
(ɛnərdʒi)
noun
(Mechanical engineering: Energy, thermodynamics and heat transfer)
Energy is a quantity that describes how much work an object or system can do or how much heat it can produce.
A ball flying through the air has energy because it can do "work" on an object on the ground if it collides with it, by pushingit or damaging it.
The water is heated by solar energy.
Energy is a quantity that describes how much work an object or system can do or how muchheat it can produce.
energy in Electrical Engineering
(ɛnərdʒi)
noun
(Electrical engineering: Circuits, Electrical power, Computing and control)
Electrical energy is power from electricity, measured in joules, that makes machines work or producesheat.
The battery stores the energy when the wind generation system is producing more power than is needed.
A generator is a machine that converts mechanical energy into electrical energy.
Electrical energy is power from electricity, measured in joules, that makes machines work or producesheat.
renewable energy
COBUILD Collocations
energy
cheap energy
consume energy
devote energy to
electrical energy
excess energy
focus energy on
intellectual energy
mental energy
muster the energy to
pent-up energy
physical energy
release energy
require energy
restless energy
sap energy
save energy
store energy
summon the energy to
sustainable energy
youthful energy
Examples of 'energy' in a sentence
energy
One way you can slice hundreds of pounds off your annual energy bill is to switch supplier.
Times, Sunday Times (2016)
Always have it out with the debt collection company and the energy supplier right away.
Times, Sunday Times (2016)
Learning to measure time and energy helps you work more efficiently.
The Sun (2017)
Ministers hope it could provide an important new source of energy.
Times, Sunday Times (2017)
Will you be out in the cold if your energy supplier tanks?
Times, Sunday Times (2016)
Experts predict the element will help the world move away from fossil fuels and into a new era of battery powered energy.
The Sun (2017)
Action planet Mars in your chart gives you a fresh surge of energy and determination.
The Sun (2016)
Bringing the breath in alignment with focus on the body 's energy helps the brain to push us into an ecstatic climax.
The Sun (2016)
When so much energy must be directed at Brexit, the new government will have limited capacity for domestic reform.
Times, Sunday Times (2016)
Given the energies devoted to producing performance tables by fund platforms, fund managers and the press, their ability to predict returns is depressing.
Times, Sunday Times (2016)
Your metabolism is the speed at which your body produces energy.
Times, Sunday Times (2007)
We are working closely with energy suppliers to implement a solution as quickly as possible.
Times, Sunday Times (2014)
Success = ability + energy + consistency.
Times, Sunday Times (2015)
Nuclear power is an energy that brings destruction.
Times, Sunday Times (2015)
The main reason that countries turn to coal is energy security.
Times, Sunday Times (2007)
So they burn up our insides rather than releasing energy to do other physical things.
Times, Sunday Times (2008)
You set a fair limit on the energy you devote to family life.
The Sun (2012)
She had so much vitality and energy.
The Sun (2013)
Your determination and energy are second to none.
The Sun (2015)
Most energy suppliers offer discounts if you pay by monthly direct debit.
Times, Sunday Times (2006)
With the rising cost of bills and energy this is money that would really help.
Times, Sunday Times (2011)
They may be the energy boost you need.
Christianity Today (2000)
The energy crisis would be a distant memory.
The Sun (2014)
Your physical energy is legendary and you adore trying to outdo each other.
The Sun (2014)
They have so much energy and work so hard.
Times, Sunday Times (2007)
It will be powered by alternative energy and cleaner fossil fuels.
Times, Sunday Times (2009)
Energy in coal can be changed into heat energy by burning.
Chapman, C. & Horsley, M. & Small, E. Technology Basic Facts (1990)
It is to these efforts that our combined energies should be directed.
Times, Sunday Times (2011)
You need to have bags of energy and the ability to face joy and tragedy in equal measure.
The Sun (2012)
The potential conflict between protecting habitat and forging sources of clean energy is one that many environmentalists are struggling with.
Times, Sunday Times (2007)
The key is to get into a mindset where it becomes second nature to save energy rather than squander it.
Times, Sunday Times (2007)
The energy needed for this process is supplied from the body 's own energy deposits.
Lutzner, Dr Helmut Successful Fasting -the easy way to cleanse your body of its poisons (1990)
A site for a Scottish wind farm that has been the subject of a bitter battle between two wealthy families has been sold to the energy company.
Times, Sunday Times (2013)
In other languages
energy
British English: energy /ˈɛnədʒɪ/ NOUN
strength If you have energy, you have the strength to move around a lot and do things.
He has the energy to run for miles.
American English: energy
Arabic: قُوَّة
Brazilian Portuguese: energia
Chinese: 精力
Croatian: energija
Czech: energie
Danish: energi
Dutch: energie
European Spanish: energía
Finnish: energia
French: énergie
German: Energie
Greek: ενέργεια
Italian: energia
Japanese: 元気
Korean: 에너지
Norwegian: energi
Polish: energia
European Portuguese: energia
Romanian: energie
Russian: силы
Latin American Spanish: energía
Swedish: energi
Thai: พลังงาน
Turkish: enerji
Ukrainian: енергія
Vietnamese: năng lượng
British English: energy /ˈɛnədʒɪ/ NOUN
powerEnergy is the power that makes machines work.
The lamp gets its energy from the sun.
American English: energy
Arabic: طَاقَة
Brazilian Portuguese: energia
Chinese: 能量
Croatian: energija
Czech: energie
Danish: energi
Dutch: energie
European Spanish: energía
Finnish: energia
French: énergieélectricité
German: Energie
Greek: ενέργεια
Italian: energia
Japanese: エネルギー
Korean: 에너지
Norwegian: energi
Polish: energia
European Portuguese: energia
Romanian: energie
Russian: энергия
Latin American Spanish: energía
Swedish: energi
Thai: พลังงาน
Turkish: enerji
Ukrainian: енергія
Vietnamese: năng lượng
All related terms of 'energy'
dark energy
unobserved energy whose existence is proposed to account for the observed acceleration in the expansion of the universe
energy band
a range of energies associated with the quantum states of electrons in a crystalline solid. In a semiconductor or an insulator there is a valence band containing many states, most of which are occupied . Above this is a forbidden band with only a few isolated states caused by impurities . Above this is a conduction band containing many states most of which are empty . In a metal there is a continuous valence-conduction band
energy bar
a small bar of food containing ingredients designed to boost the eater's energy , esp before, during, or after exercise
energy crop
a crop that is grown because it can be used as fuel
energy gap
the difference of energy between the bottom of the conduction band and the top of the valence band of the electrons in a crystalline solid . For values below about 2eV the substance is considered to be a semiconductor whilst for higher values it is considered to be an insulator
free energy
a thermodynamic property that expresses the capacity of a system to perform work under certain conditions
HDR energy
hot dry rock energy ; energy extracted from hot rocks below the earth's surface by pumping water around a circuit in the hot region and back to the surface
high-energy
possessing speed and energy beyond the classical laws of motion , esp of particles which have been accelerated in an accelerator
mass-energy
mass and energy considered as equivalent and interconvertible, according to the theory of relativity
sap energy
Energy is determination and enthusiasm about doing things.
save energy
Energy is the power from sources such as electricity and coal that makes machines work or provides heat.
wave energy
energy obtained by harnessing wave power
wind energy
See wind power
atomic energy
→ nuclear energy
cheap energy
Energy is the power from sources such as electricity and coal that makes machines work or provides heat.
clean energy
energy, as electricity or nuclear power, that does not pollute the atmosphere when used, as opposed to coal and oil
energy crisis
a shortfall in or interruption to the provision of energy supplies
energy drink
a soft drink containing ingredients designed to boost the drinker's energy , esp after exercise
energy future
The future is the period of time that will come after the present , or the things that will happen then.
energy-giving
containing ingredients designed to boost the eater's or drinker's energy , esp before, during, or after exercise
energy level
a constant value of energy in the distribution of energies among a number of atomic particles
energy policy
A policy is a set of ideas or plans that is used as a basis for making decisions , especially in politics , economics , or business.
energy saving
the fact of saving energy , or amount of energy saved
energy-smart
using electrical power in an efficient or economical way
excess energy
Energy is the ability and strength to do active physical things and the feeling that you are full of physical power and life.
Fermi energy
the level in the distribution of electron energies in a solid at which a quantum state is equally likely to be occupied or empty
fossil energy
heat energy released by burning fossil fuel
green energy
Green energy is power that comes from sources that do not harm the environment and are always available , such as wind and sunlight .
mental energy
Energy is determination and enthusiasm about doing things.
solar energy
energy obtained from solar power
store energy
Energy is the power from sources such as electricity and coal that makes machines work or provides heat.
tidal energy
energy obtained by harnessing tidal power
binding energy
the energy that must be supplied to a stable nucleus before it can undergo fission . It is equal to the mass defect
caloric energy
energy measured in calories
consume energy
Energy is the power from sources such as electricity and coal that makes machines work or provides heat.
energy balance
An energy balance is a consideration of the energy input , output , and consumption or generation in a process or stage.
energy company
a company that produces energy , such as electricity
energy obesity
the practice of being wasteful of energy in the form of electricity , fossil fuels , etc, in one's day-to-day life
energy security
Security refers to all the measures that are taken to protect a place, or to ensure that only people with permission enter it or leave it.
internal energy
the thermodynamic property of a system that changes by an amount equal to the work done on the system when it suffers an adiabatic change. It is the sum of the kinetic and potential energies of its constituent atoms , molecules , etc
kinetic energy
In physics, kinetic energy is the energy that is produced when something moves .
lattice energy
the energy required to separate the ions of a crystal to an infinite distance , usually expressed in joules per mole
luminous energy
energy emitted or propagated in the form of light; the product of a luminous flux and its duration , measured in lumen seconds
nervous energy
an excess of energy that you have when you are apprehensive or worried
nuclear energy
energy released during a nuclear reaction as a result of fission or fusion
physical energy
Energy is the ability and strength to do active physical things and the feeling that you are full of physical power and life.
psychic energy
according to Freud , the force that lies behind all mental processes, having its basic source as the id
radiant energy
energy that is emitted or propagated in the form of particles or electromagnetic radiation . It is measured in joules
release energy
Energy is the ability and strength to do active physical things and the feeling that you are full of physical power and life.
require energy
Energy is the ability and strength to do active physical things and the feeling that you are full of physical power and life.