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energy

noun

/ˈɛn ər dʒi/

IPA:

Dictionary definition of energy

Vitality, vigor, and the ability to sustain activity or exertion.
"The dancer's performance was filled with grace and energy."

Detailed meaning of energy

In everyday life, energy is essential for powering machines, fueling our bodies, driving processes, and enabling various forms of work and movement. It plays a fundamental role in understanding and explaining phenomena in the natural world and is a key concept in fields such as physics, engineering, and environmental science. It also refers to the fundamental property of matter and the capacity to do work or cause change. It is a measurable quantity that exists in various forms, including kinetic energy (energy of motion), potential energy (stored energy), thermal energy (heat energy), chemical energy (energy stored in chemical bonds), and many others. Energy is neither created nor destroyed but can be transformed from one form to another. In the context of physics, energy is typically measured in units such as joules or calories.

Example sentences containing energy

1. Renewable energy sources such as solar and wind power are gaining popularity.
2. After a long day of work, I was low on energy and needed rest.
3. The athlete had a burst of energy in the final moments of the race.
4. The power outage left the entire neighborhood without electricity or energy.
5. The food we eat provides us with the energy our bodies need to function.
6. The new energy-efficient appliances helped reduce our monthly utility bills.

History and etymology of energy

The noun 'energy' has a rich etymological history rooted in ancient Greek philosophy. It derives from the Greek word 'energeia,' which consists of 'en,' signifying 'in,' and 'ergon,' meaning 'work' or 'action.' In the philosophical writings of Aristotle, 'energeia' referred to the actualization of potential or the expression of inherent power. This concept was later adopted and adapted by various scientific and philosophical traditions. Over time, 'energy' came to represent the fundamental capacity to do work or bring about change. In the context of vitality, vigor, and the ability to sustain activity or exertion, 'energy' describes the essence of animate existence and the force that drives physical and mental processes. Its etymology encapsulates the idea that life and activity are intrinsically connected to the dynamic principle of energy.

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Further usage examples of energy

1. The scientist conducted experiments to study the transfer of energy.
2. Yoga and meditation can help restore balance and increase energy levels.
3. The project team brainstormed ideas to harness renewable energy for sustainable development.
4. The energetic music at the concert got everyone on their feet, dancing and feeling the energy.
5. The company implemented energy-saving measures to reduce its carbon footprint.
6. Renewable energy sources are essential for a sustainable future.
7. Yoga and meditation can restore your inner energy.
8. The athlete's boundless energy amazed the crowd.
9. Solar panels harness the power of the sun to generate energy.
10. Energy conservation is crucial to reduce our carbon footprint.
11. A healthy diet provides the body with essential energy.
12. Wind turbines capture the kinetic energy of the wind.
13. The team's enthusiasm is a source of positive energy.
14. Energy efficiency can save you money on utility bills.
15. Geothermal energy taps into the Earth's natural heat.
16. The energy in the room was palpable before the concert.
17. Fossil fuels remain a major source of global energy.
18. Physical exercise is a great way to boost your energy levels.
19. Batteries store electrical energy for various devices.
20. Nuclear energy is a controversial but potent power source.
21. Renewable energy technologies continue to advance.
22. Energy drinks are popular among those seeking a quick boost.
23. A well-balanced lifestyle promotes sustained energy.
24. Hydropower dams convert water's kinetic energy into electricity.
25. Innovation drives progress in the field of clean energy.