the strength and vitality required for sustained physical or mental activity, power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines, a feeling of enthusiasm, eagerness, or liveliness

have energy to burn, put energy into something, energy vampire

kinetic energy, potential energy, renewable energy

Formal and Informal Expressions of energy

In different contexts, you can replace 'energy' with suitable alternatives. In a more formal setting, 'vitality, power, resources' is apt. In informal speech or writing, 'oomph, pep' is a commonplace synonym.

energy: Explore its Definition & Usage

energy Definition

1the strength and vitality required for sustained physical or mental activity
2power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines
3a feeling of enthusiasm, eagerness, or liveliness

Using energy: Examples

Take a moment to familiarize yourself with how "energy" can be used in various situations through the following examples!

Example
I don't have enough energy to go for a run today.
Example
The energy generated by the wind turbines is used to power the entire town.
Example
The team played with a lot of energy and enthusiasm.
Example
Solar energy is a renewable source of power.
Example
The concert was full of energy and excitement.

energy Synonyms and Antonyms

Synonyms for energy

Antonyms for energy

Idioms Using energy

have energy to burn
have a lot of energy or stamina
Example
After a good night's sleep, I have energy to burn and can tackle any task.
put energy into something
exert effort or enthusiasm towards a task or project
Example
If we put more energy into our marketing strategy, we could attract more customers.
energy vampire
a person who drains others' energy or enthusiasm
Example
I try to avoid spending too much time with my coworker because he's an energy vampire and always brings me down.

Phrases with energy

kinetic energy
the energy possessed by an object due to its motion
Example
The roller coaster has a lot of kinetic energy as it speeds down the track.
potential energy
the energy possessed by an object due to its position or state
Example
The water at the top of the waterfall has a lot of potential energy before it cascades down.
renewable energy
energy that comes from sources that can be replenished, such as solar, wind, or hydro power
Example
Many countries are investing in renewable energy sources to reduce their reliance on fossil fuels.

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Summary: energy in Brief

The term 'energy' [ˈɛnərdʒi] refers to the strength and vitality required for physical or mental activity, as well as power derived from physical or chemical resources. It can also denote a feeling of enthusiasm or liveliness. Examples include 'I don't have enough energy to go for a run today,' and 'The concert was full of energy and excitement.' Phrases like 'kinetic energy' and 'potential energy' refer to types of energy, while idioms like 'have energy to burn' and 'energy vampire' describe people or situations related to energy.