Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “energy”

energy

noun (STRENGTH)    /ˈen.ə.dʒi/ US  /-ɚ-/
B1 [U] the power and ability to be physically and mentally active: Since I started eating more healthily I've got so much more energy. I was going to go out this evening, but I just haven't got the energy. [+ to infinitive] I didn't even have the energy to get out of bed.approving Her writing is full of passion and energy (= enthusiasm).Excitement, interest, energy and enthusiasm energies [plural] the total of all your power and ability to be mentally and physically active: I'm going to channel all my energies into getting a better job.Excitement, interest, energy and enthusiasm
(Definition of energy noun (STRENGTH) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of energy

Definitions of “energy” in other dictionaries

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More