Reading Theme:
Energy Definition: Vigor, Power Source & Examples (2 meaning)
Meaning 1：Vigor (energy)
energy
/ˈɛnərdʒi/
n.
The strength you feel in your body or mind that lets you do things.
Vigor
➕
/ˈvɪɡər/
n.
Vigor refers to the physical or mental strength and active energy that enables you to do things with enthusiasm and effort.
📘 Details & Usage
📖 Root Explanation
From Greek 'energeia' (en- 'in' + ergon 'work'), meaning 'activity, operation'.
💡 Mnemonic
Think: 'En'ergy gives you the 'en'gine to act. When you have it, you are 'erg' (work) ready.
📖 Example
After a good night's sleep, I woke up full of energy and was ready to tackle the day.
After a good night's sleep, I woke up full of energy and was ready to tackle the day.
🔗 Collocations
physical energy – the strength derived from bodily health and activity
mental energy – the cognitive focus and drive for mental tasks
energy boost – a sudden increase in vitality from food, rest, or exercise
🔄 Synonyms
🚫 Antonyms
🌱 Derivatives
energetic (adj.) – showing or involving great activity or vitality
energetically (adv.) – in a manner showing great energy or enthusiasm
energize (v.) – give vitality and enthusiasm to
📖 Cultural Story
Aristotle coined 'energeia' to denote actuality or being-at-work. It entered English via Latin and French, evolving from philosophical concept to everyday use for vitality and power.
Meaning 2：Power source (energy)
energy
/ˈɛnərdʒi/
n.
Power from sources like the sun, wind, or fuel that makes electricity or makes things move.
Power source
➕
/ˈpaʊər sɔːrs/
n.
Energy as a power source refers to the capacity to do work, often converted into electricity or motion from natural resources like sun, wind, or fuel.
📘 Details & Usage
📖 Example
Many countries are now investing heavily in solar energy because it's clean and never runs out.
Many countries are now investing heavily in solar energy because it's clean and never runs out.
🔗 Collocations
solar energy – energy derived from the sun's rays
wind energy – energy generated by wind turbines
renewable energy – energy from sources that are naturally replenished
🔄 Synonyms
power (n.) – energy that can be used to operate machines or generate electricity
electricity (n.) – a form of energy resulting from the existence of charged particles
fuel (n.) – material such as coal, gas, or oil that is burned to produce heat or power
🌱 Derivatives
energetic (adj.) – showing or involving great activity or vitality
energetically (adv.) – in a manner showing great energy or enthusiasm
energize (v.) – give vitality and enthusiasm to
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