Read the dictionary definition of energy. All definitions for this word.
1. an imaginative lively style (especially style of writing)
1. his writing conveys great energy
2. a remarkable muscularity of style
2. enterprising or ambitious drive
1. Europeans often laugh at American energy
3. forceful exertion
1. he plays tennis with great energy
2. he's full of zip
4. the federal department responsible for maintaining a national energy policy of the United States; created in 1977
5. any source of usable power
1. the DOE is responsible for maintaining the energy policy
6. (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs
1. energy can take a wide variety of forms
7. a healthy capacity for vigorous activity
1. jogging works off my excess energy
2. he seemed full of vim and vigor
