|1.||[ noun ] (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"
|Related terms:||physical_phenomenon radiation heat work activation_energy electricity energy_level rest_energy nuclear_energy alternative_energy radiant_energy mechanical_energy atomic_energy chemical_energy binding_energy physics|
|2.||[ noun ] an exertion of force|
"he plays tennis with great energy"
|Related terms:||force athleticism excite|
|3.||[ noun ] enterprising or ambitious drive|
"Europeans often laugh at American energy"
|Related terms:||drive second_wind crusade stimulate|
|4.||[ noun ] an imaginative lively style (especially style of writing)|
|Synonyms:||vigour vim vigor|
"his writing conveys great energy"
|Related terms:||liveliness vitality excite|
|5.||[ noun ] (medicine) a healthy capacity for vigorous activity|
"jogging works off my excess energy" "he seemed full of vim and vigor"
|Related terms:||good_health juice ch'i excite|
|6.||[ noun ] (government) the federal department responsible for maintaining a national energy policy of the United States; created in 1977|
|Synonyms:||Energy_Department doe Department_of_Energy|
|Related terms:||executive_department department_of_energy_intelligence|