Meaning & Definition of word "Energy"

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    Energy

    /ˈɛn.ər.dʒi/

    noun:

    • 1. The capacity to do work or to produce power.
      • Example: The sun provides a significant amount of energy to the Earth.
    • 2. Vitality or intensity of expression.
      • Example: She approached her work with great energy and enthusiasm.
    • 3. A source of usable power, such as electricity or gas.
      • Example: The company is investing in renewable energy resources.
    • 4. Physics: The quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.
      • Example: Kinetic energy is the energy of motion.
    • 5. In physics, the sum of potential and kinetic energy in a system.
      • Example: The total energy of the roller coaster includes both its potential and kinetic energy.

    Etymology

    From Greek 'energeia' meaning 'activity, operation'.

    Common Phrases and Expressions

    renewable energy:

    Energy from sources that are naturally replenished.

    energy crisis:

    A situation in which the demand for energy exceeds the supply.

    energy level:

    A quantifiable measure of the energy of an electronic state.

    negative energy:

    A term used to describe feelings or influences that are ominous or oppressive.

    Related Words

    kinetic energy:

    Energy possessed by an object due to its motion.

    potential energy:

    Energy stored in an object due to its position or configuration.

    thermal energy:

    Energy that comes from the temperature of matter.

    Slang Meanings of energy

    Meaning: High energy or excitement.

    Example Sentence: That concert was full of energy!

    Meaning: Good vibes or positive feelings.

    Example Sentence: I'm feeling such good energy today.