What does the word energy?

Answer 1

ENERGY is defined in physics as the ability to apply force. It may be the energy of matter in motion (kinetic) or at rest (potential). Or it may be a nuclear or thermal manifestation. More commonly, energy is the physical or electromagnetically-radiated release of usable power. Sources include gravity, moving water or air, converted radiation (especially solar), or chemical reactions.

Answer 2

Energy is the capacity to do work, typically derived from sources such as heat, light, or motion. It exists in various forms, including kinetic, potential, thermal, electrical, and chemical energy.