English · Science & Technology
energy
/ˈɛn.ə.dʒi/
[/ˈɛn.ə.dʒi/]
capacity to do work
Beginnernoun
Definition
The capacity to do work or cause change, existing in forms such as heat, light, and motion.
Example
The sun provides almost all the energy that drives life and weather on our planet.
The sun provides almost all the energy that drives life and weather on our planet.
Etymology
From Greek 'energeia' (activity, operation), from 'en-' (in) plus 'ergon' (work).
How & Where It’s Used
Used in physics, in everyday talk about tiredness, and in discussions of power supply.