Synonyms for energy

(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work (noun)

forceful exertion (noun)

• vigor
• vigour
• zip

enterprising or ambitious drive (noun)

• push
• get-up-and-go

an imaginative lively style (especially style of writing) (noun)

• muscularity
• vim

a healthy capacity for vigorous activity (noun)

• vitality

the federal department responsible for maintaining a national energy policy of the United States (noun)

• doe