The impetus behind all motion and all activity. / The capacity to do work.

plural of energy

(idiomatic) One who is especially lively, continually active, or industrious. / (idiomatic) The energy associated with being lively, continually active, or industrious.

A condition of excessive energy consumption, usually by a nation or other large collective. The symptoms may be expressed in the form of energy commodity price volatility, environmental degradation, and energy-trade-induced geopolitical tension.

A supplemental food in bar form, containing cereals or other high-energy foods. / (video games) A bar indicating the proportion of a character's energy that still remains.

(alternative medicine) The spiritual or etheric energy produced by an individual living being.

(physics) of an elementary particle, or the equivalent electromagnetic radiation, having an energy greater than a hundred thousand electron volts

A small but highly concentrated energy drink that contains large amounts of caffeine and/or other stimulants.

plural of energy shot

(physics) A property, characteristic of the state of a thermodynamic system, the change of which is equal to the heat absorbed minus the work done by the system.