Definition of 'energy'

Noun

1. (physics) 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"
      Synonyms: vigor vigour zip
3. enterprising or ambitious drive; "Europeans often laugh at American energy"
      Synonyms: push get-up-and-go
4. an imaginative lively style (especially style of writing); "his writing conveys great energy"; "a remarkable muscularity of style"
      Synonyms: muscularity vigor vigour vim
5. a healthy capacity for vigorous activity; "jogging works off my excess energy"; "he seemed full of vim and vigor"
      Synonyms: vim vitality
6. the federal department responsible for maintaining a national energy policy of the United States; created in 1977
      Synonyms: Department of Energy Energy Department DOE

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