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English noun: energy

1. energy (phenomenon) (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs

SamplesEnergy can take a wide variety of forms.

Synonymsfree energy

Broader (hypernym)physical phenomenon

Narrower (hyponym)activation energy, alternative energy, atomic energy, binding energy, chemical energy, electrical energy, electricity, energy level, energy of activation, energy state, heat, heat energy, mechanical energy, nuclear energy, radiant energy, radiation, rest energy, separation energy, work

Domain categorynatural philosophy, physics

2. energy (attribute) forceful exertion

SamplesHe plays tennis with great energy.
He's full of zip.

Synonymsvigor, vigour, zip

Broader (hypernym)force, forcefulness, strength

Narrower (hyponym)athleticism, strenuosity

3. energy (attribute) enterprising or ambitious drive

SamplesEuropeans often laugh at American energy.

Synonymsget-up-and-go, push

Broader (hypernym)drive

Narrower (hyponym)second wind

4. energy (attribute) an imaginative lively style (especially style of writing)

SamplesHis writing conveys great energy.
A remarkable muscularity of style.

Synonymsmuscularity, vigor, vigour, vim

Broader (hypernym)life, liveliness, spirit, sprightliness

Narrower (hyponym)verve, vitality

5. energy (state) a healthy capacity for vigorous activity

SamplesJogging works off my excess energy.
He seemed full of vim and vigor.

Synonymsvim, vitality

Broader (hypernym)good health, healthiness

Narrower (hyponym)ch'i, chi, juice, ki, qi

6. energy (phenomenon) any source of usable power

SamplesThe DOE is responsible for maintaining the energy policy.

Broader (hypernym)physical phenomenon

7. Energy (group) the federal department responsible for maintaining a national energy policy of the United States; created in 1977

SynonymsDepartment of Energy, DOE, Energy Department

Broader (hypernym)executive department

Part holonymDepartment of Energy Intelligence, DOEI

Based on WordNet 3.0 copyright © Princeton University.
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