ENERGY

Definition of ENERGY

  1. (noun)(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs
  2. (noun)forceful exertion
  3. (noun)enterprising or ambitious drive
  4. (noun)an imaginative lively style (especially style of writing)
  5. (noun)a healthy capacity for vigorous activity
  6. (noun)any source of usable power