the capacity for vigorous activity; available power: I eat chocolate to get quick energy.
2.
an adequate or abundant amount of such power: I seem to have no energy these days.
3.
Often, energies.a feeling of tension caused or seeming to be caused by an excess of such power: to work off one's energies at tennis.
4.
an exertion of such power: She plays tennis with great energy.
5.
the habit of vigorous activity; vigor as a characteristic: Foreigners both admire and laugh at American energy.
6.
the ability to act, lead others, effect, etc., forcefully.
7.
forcefulness of expression: a writing style abounding with energy.
8.
Physics. the capacity to do work; the property of a system that diminishes when the system does work on any other system, by an amount equal to the work so done; potential energy. Symbol:E
9.
any source of usable power, as fossil fuel, electricity, or solar radiation.
[Origin: 1575–85; < LL energīa < Gk enérgeia activity, equiv. to energe- (s. of energeǐn to be active; see en-2, work) + -ia-y3]
The capacity for work or vigorous activity; vigor; power. See Synonyms at strength.
Exertion of vigor or power: a project requiring a great deal of time and energy.
Vitality and intensity of expression: a speech delivered with energy and emotion.
Usable heat or power: Each year Americans consume a high percentage of the world's energy.
A source of usable power, such as petroleum or coal.
Usable heat or power: Each year Americans consume a high percentage of the world's energy.
A source of usable power, such as petroleum or coal.
Physics The capacity of a physical system to do work.
[French énergie, from Late Latin energīa, from Greek energeia, from energos, active : en-, in, at; see en-2 + ergon, work; see werg- in Indo-European roots.]
1599, from M.Fr. energie, from L.L. energia, from Gk. energeia "activity, operation," from energos "active, working," from en- "at" + ergon "work" (see urge (v.)). Used by Aristotle with a sense of "force of expression;" broader meaning of "power" is first recorded in Eng. 1665. Energize "rouse to activity" is from 1753; energetic of persons, institutions, etc., is from 1796. Energy crisis first attested 1970.
(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.
forceful exertion; "he plays tennis with great energy"; "he's full of zip"
3.
enterprising or ambitious drive; "Europeans often laugh at American energy"
4.
an imaginative lively style (especially style of writing); "his writing conveys great energy"; "a remarkable muscularity of style"
5.
a healthy capacity for vigorous activity; "jogging works off my excess energy"; "he seemed full of vim and vigor"
6.
any source of usable power; "the DOE is responsible for maintaining the energy policy"
7.
the federal department responsible for maintaining a national energy policy of the United States; created in 1977 [syn: Department of Energy]
the ability to act, or the habit of acting, strongly and vigorously Example: He has amazing energy for his age; That child has too much energy; I must devote my energies to gardening today.
Arabic:
نَشاط، حَيَوِيَّه
Chinese (Simplified):
活力，劲
Chinese (Traditional):
活力，勁
Czech:
energie
Danish:
energi; kræfter
Dutch:
energie
Estonian:
energia
Finnish:
energia
French:
énergie
German:
die Energie
Greek:
ενεργητικότητα
Hungarian:
energia
Icelandic:
orka, kraftur
Indonesian:
tenaga
Italian:
energia
Japanese:
精力
Latvian:
enerģija
Lithuanian:
energija
Norwegian:
energi, (handle)kraft
Polish:
energia
Portuguese (Brazil):
energia
Portuguese (Portugal):
energia
Romanian:
energie
Russian:
энергия; усилия
Slovak:
energia
Slovenian:
energija
Spanish:
energía
Swedish:
energi
Turkish:
enerji, takat
energy2[ˈenədʒi]noun
the power, eg of electricity, of doing work Example: electrical energy; nuclear energy
energyAudio Help (ěn'ər-jē) Pronunciation Key
The capacity or power to do work, such as the capacity to move an object (of a given mass) by the application of force. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another. It is measured by the amount of work done, usually in joules or watts. See also conservation of energy, kinetic energy, potential energy. Compare power, work.
In physics, the ability to do work. Objects can have energy by virtue of their motion (kinetic energy), by virtue of their position (potential energy), or by virtue of their mass (seeE = mc2).
Note: The most important property of energy is that it is conserved — that is, the total energy of an isolated system does not change with time. This is known as the law of conservation of energy. Energy can, however, change form; for example, it can be turned into mass and back again into energy.
Energy, IL (village, FIPS 24166) Location: 37.77537 N, 89.02575 W Population (1990): 1106 (408 housing units) Area: 3.3 sq km (land), 0.0 sq km (water)
En`er*get"ic\, Energetical \En`er*get"ic*al\, a. [Gr. ?, fr. ? to work, be active, fr. ? active. See Energy.]1. Having energy or energies; possessing a capacity for vigorous action or for exerting force; active. "A Being eternally energetic." --Grew. 2. Exhibiting energy; operating with force, vigor, and effect; forcible; powerful; efficacious; as, energetic measures; energetic laws. Syn: Forcible; powerful; efficacious; potent; vigorous; effective; strenuous. -- En`er*get"ic*al*ly, adv. -- En`er*get"ic*al*ness, n.
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Audio Help [en-er-jee] Pronunciation Key 
