· (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"

Synonym(s): free_energy

Hypernym(s): physical_phenomenon

· forceful exertion; "he plays tennis with great energy"; "he's full of zip"

Synonym(s): vigor, vigour, zip

Hypernym(s): force, forcefulness, strength

· enterprising or ambitious drive; "Europeans often laugh at American energy"

Synonym(s): push, get-up-and-go

Hypernym(s): drive

· an imaginative lively style (especially style of writing); "his writing conveys great energy"; "a remarkable muscularity of style"

Synonym(s): muscularity, vigor, vigour, vim

Hypernym(s): liveliness, life, spirit, sprightliness

· a healthy capacity for vigorous activity; "jogging works off my excess energy"; "he seemed full of vim and vigor"

Synonym(s): vim, vitality

Hypernym(s): good_health, healthiness

· any source of usable power; "the DOE is responsible for maintaining the energy policy"

Hypernym(s): physical_phenomenon

· the federal department responsible for maintaining a national energy policy of the United States; created in 1977

Synonym(s): Department_of_Energy, Energy_Department, Energy, DOE

Hypernym(s): executive_department