energy
gb/ˈɛnɚd͡ʒi/ us/ˈɛnɚd͡ʒi/
A2
English
~ 800
Senses
0 senses
Noun
A2
entity
1
capacity for physical or mental activity
The strength or power you need to do things.
Usage pattern:
[someone] has [energy] for [something]
Common mistake:
Learners sometimes confuse 'energy' with 'electricity' in contexts where it means personal strength or liveliness.
Synonyms
vitality (Suggests liveliness and health, often with a positive tone.)
Antonyms
fatigue (Refers to tiredness or lack of energy.)
Collocations
have energy
|lose energy
|full of energy
|burst of energy
|mental energy
Themes
daily life
|health
|emotions
|daily_life
|core_vocabulary
Examples
- She didn’t have enough energy to finish the race.
- After the long meeting, I felt drained of all my energy.
- He’s always full of energy, even in the morning.
- I need to save my energy for the big game.
- Meditation can help restore your mental energy.
Learner examples
- I have no energy after work.
- She is full of energy today.
- He uses a lot of energy at the gym.
- I need more energy to run.
- We get energy from food.
Noun
technical
B1
entity
2
capacity of a system to do work
In science, the power that makes things move or change, like heat, light, or electricity.
Common mistake:
Learners may confuse 'energy' in physics with everyday 'strength'. Clarify context.
Synonyms
power (A general term for the ability to do work; less precise in physics.)
Antonyms
entropy (In physics, a measure of disorder; represents loss of usable energy.)
Collocations
kinetic energy
|potential energy
|renewable energy
|nuclear energy
|energy conservation
Themes
science
|technology
Examples
- Solar panels convert sunlight into usable energy.
- Kinetic energy increases with the object's speed.
- The law of conservation of energy states that energy cannot be created or destroyed.
- Wind turbines generate renewable energy.
- Chemical energy in food fuels our bodies.
Learner examples
- The sun gives us energy.
- Moving water has a lot of energy.
- We can save energy by turning off lights.
- Batteries store energy.
- Energy can change from one form to another.
Noun
B2
entity
3
enthusiasm and drive to act
A lot of interest and effort to do something well.
Usage pattern:
[someone] puts [energy] into [something]
Common mistake:
Sometimes confused with 'power' when referring to influence rather than personal enthusiasm.
Synonyms
drive (Suggests motivation and determination toward goals.)
Antonyms
apathy (Lack of interest or enthusiasm.)
Collocations
channel your energy
|direct energy into
|creative energy
|political energy
Themes
emotions
|work
|core_vocabulary
Examples
- She put all her energy into starting her own business.
- The campaign was fueled by the volunteers’ energy and passion.
- We need to channel this energy into productive projects.
- His creative energy seemed limitless.
- The team’s energy was contagious.
Learner examples
- He puts his energy into music.
- She has a lot of creative energy.
- They use their energy to help people.
- We must put our energy into study.
- Her energy makes the work fun.
Grammar
Dictionary form
energy
IPA
GB/ˈɛnɚd͡ʒi/
US/ˈɛnɚd͡ʒi/
Syllables & stress
en - ergy (2 syllables)
Stress on 1st syllable (en)
Word forms
Noun
- Base: energy
- Plural: energies, energy
Word family
Expressions
burst of energy
1/bˈɚst əv ˈɛnɚd͡ʒi/
fixed phrase
short sudden increase in strength/activity
A short time when you suddenly feel very active and strong.
Examples
- I had a sudden burst of energy and finished cleaning the house in an hour.
- The children had a burst of energy after eating ice cream.
channel your energy into [something]
1/t͡ʃˈænəl jˈʊɹ ˈɛnɚd͡ʒi ˈɪntu sˈʌmθɪŋ/
fixed phrase
direct effort toward specific goal/activity
To use your effort and attention for one thing in particular.
Examples
- He channels his energy into helping his community.
- You should channel your energy into learning new skills.
full of energy
1/fˈʊl əv ˈɛnɚd͡ʒi/
fixed phrase
very lively and active
Having a lot of strength and liveliness.
Examples
- Even after a long day, he’s still full of energy.
- The puppy is always full of energy.
run out of energy
1/ɹˈʌn ˈaʊt əv ˈɛnɚd͡ʒi/
fixed phrase
have no strength left
To use all your strength so you have none left.
Examples
- I ran out of energy halfway through the hike.
- She ran out of energy before finishing her project.
save your energy
1/sˈeɪv jˈʊɹ ˈɛnɚd͡ʒi/
fixed phrase
avoid using strength now for later use
Do not use your strength now so you can use it later when needed.
Examples
- Save your energy for the last part of the race.
- You should save your energy for tomorrow’s big meeting.