# energy

/ˈɛnɝdʒi/ (US) · /ˈɛnədʒi/ (UK)

Source: https://englishreference.com/word/energy
Updated: 2026-06-19

## Senses

### 1. human vitality

noun · CEFR A2

the strength and power you have to do things without getting tired.

For teachers: the capacity for vigorous activity or the exertion of power.

- I usually have more energy in the morning after a good sleep.
- The young volunteers brought a great deal of energy to the project, completing the renovation weeks ahead of schedule.

### 2. power sources

noun · CEFR A2

power from things like oil, coal, or the sun that we use for light and heat.

For teachers: usable power derived from physical or chemical resources, especially to provide light and heat or to work machines.

- The government is trying to use more green energy like wind and solar power.
- The industrial sector consumes a significant percentage of the nation's total energy, leading to calls for more efficient manufacturing processes.

### 3. scientific capacity

noun · CEFR B2 · Academic · Technical

the ability of a physical system to do work.

For teachers: the property of matter and radiation which is manifest as a capacity to perform work, such as causing motion or interaction.

- In physics, we learned that energy cannot be destroyed, only changed.
- Kinetic energy is the energy an object possesses due to its motion, calculated as one-half of its mass times the square of its velocity.

### 4. vibe or atmosphere

noun · CEFR B2 · Informal

the feeling or mood that a person or place gives you.

For teachers: the perceived emotional quality or atmosphere emanating from a person, place, or situation.

- I didn't like the energy in that room; everyone seemed very angry.
- The team's collective energy shifted from anxiety to determination as soon as the captain delivered her pre-match speech.

### 5. gaming resource

noun · CEFR B1 · Informal

a limited number of points a character can use to perform actions in a game.

For teachers: a quantifiable resource in game mechanics that limits the number of actions a player or unit can perform within a specific timeframe.

- My character ran out of energy, so I had to wait for it to refill before attacking again.
- Players must manage their energy bars carefully, as high-damage abilities consume more resources than standard defensive maneuvers.

## Examples

- I do not have the energy to go for a run today.
- The new solar panels generate enough renewable energy to power the entire office building throughout the year.
- After weeks of intense negotiations, the diplomatic team lacked the emotional energy to celebrate their breakthrough, preferring instead to retreat to their hotel rooms for immediate rest.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.