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Noun: energy  e-nu(r)-jee
  1. (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";
    - free energy
     
  2. Forceful exertion
    "he plays tennis with great energy";
    - vigor [US], vigour [Brit, Cdn], zip
     
  3. Enterprising or ambitious drive
    "Europeans often laugh at American energy";
    - push, get-up-and-go
     
  4. An imaginative lively style (especially style of writing)
    "his writing conveys great energy";
    - muscularity, vigor [US], vigour [Brit, Cdn], vim
     
  5. A healthy capacity for vigorous activity
    "jogging works off my excess energy";
    - vim, vitality
     
  6. Any source of usable power
    "the DOE is responsible for maintaining the energy policy"
Noun: Energy
  1. The federal department responsible for maintaining a national energy policy of the United States; created in 1977
    - Department of Energy, Energy Department, DOE

Derived forms: energies

Type of: drive, executive department, force, forcefulness, good health, healthiness, life, liveliness, physical phenomenon, spirit, sprightliness, strength

Encyclopedia: Energy, Mines and Resources