English dictionary, thesaurus, translations & etymology
FreeDict.com
noun

energy

EHN-uh-jee
noun
1
The capacity to do work or produce change, such as heat, light, or motion.
"Solar panels convert sunlight into electrical energy."
2
Physical or mental vigour and liveliness.
"She approached every task with boundless energy."
"He didn't have the energy to argue anymore."
3
The general mood, feel, or atmosphere of a place or interaction.
"The room had great energy after the announcement."

How to Use Energy

Learner’s notes

In plain EnglishThe scientific power to do work, or informally, liveliness or the "vibe" of a place or person.

Common pairings
renewable energy burn energy positive energy energy levels

Word Forms

energies plural

Study it as flashcards or scroll it in Flow — saved to your collection.
Test yourself on “energy” A quick quiz — meaning, synonyms & usage

Fill the Gap

Can you complete this real example?

Solar panels convert sunlight into electrical _____.

Etymology

From Ancient Greek enérgeia ("activity"), from energós ("active"), from en- ("in") + érgon ("work"). The physics sense was coined by English scientist Thomas Young in 1802.

Rhymes for energy

See all rhymes for energy →
Definitions: FreeDict original editorial