Dictionary - English
energy
- The capacity for work or vigorous activity; vigor; power. See Synonyms at strength. from The American Heritage® Dictionary of the English Language, 4th Edition / listen
- Exertion of vigor or power: a project requiring a great deal of time and energy. from The American Heritage® Dictionary of the English Language, 4th Edition / listen
- Vitality and intensity of expression: a speech delivered with energy and emotion. from The American Heritage® Dictionary of the English Language, 4th Edition / listen
- Usable heat or power: Each year Americans consume a high percentage of the world's energy. from The American Heritage® Dictionary of the English Language, 4th Edition / listen
- A source of usable power, such as petroleum or coal. from The American Heritage® Dictionary of the English Language, 4th Edition / listen