energy - noun

(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs

forceful exertion

enterprising or ambitious drive

an imaginative lively style (especially style of writing)

a healthy capacity for vigorous activity

any source of usable power

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

energy - thesaurus

doe   muscularity   push   vigor   vigour   vim   vitality   zip