power
Pluralpowers
Pluralpowers
Formspowers, powering, powered
- 1The ability or right to control people and what happens.
Like a referee who is allowed to stop the game and make the rules stick.
The mayor used her power to veto the new law.
Courts have the power to overturn unfair decisions.
UsageYou have power over someone. A party in power runs the country.
Similarauthority, control, influence, command, sway
Note
- 2Electricity, or the supply of electricity that runs lights and machines.
Like the water that flows to your taps, but it runs your lights and TV instead.
The whole street lost power during the storm.
She switched off the power before changing the light bulb.
UsageSay the power is out or we lost power.
Similarelectricity, current, energy, supply
Note
- 3An ability to do something or to make something happen.
Like a magnet that can pull other things toward it.
The medicine has the power to ease pain quickly.
Music has a strange power over our moods.
UsageSay the power to do something, or powers of persuasion.
Similarability, capacity, capability, faculty, force
Note
- 4
- 5
- 6
- 7A strong or important country, company, or other group.
Like the biggest, strongest team in the league that everyone watches.
China has become a major economic power.
The two great powers competed for influence.
UsageSay a world power or a great power.
Similarforce, heavyweight, giant
Note
- 8Used before a noun to show that someone acts in a strong, big way.
Grandpa is a power walker who loops the park every morning.
As a power user, she knows every shortcut in the program.
UsageWritten as two words: power user, power walker.
Note
- 9Energy, for example from wind, water, fuel, or muscles, that makes machines and vehicles work or move.
The old mill used the power of the river to turn its big wheel.
Before engines, farmers needed the power of horses to pull their plows.
UsageSay wind power or steam power.
Similarenergy
Note
- 10
Less common meanings
- 11The group of people who control a country's government.
Like the head office that makes the big decisions for everyone.
Good reporters are not afraid to speak truth to power.
Many ordinary people feel that power never listens to them.
UsageSay the powers that be for the people in charge.
Similarauthority, government, establishment
Note
- 12A number that shows how many copies of a number to multiply together, or the answer you get.
Like stacking the same number again and again in a multiplication.
In math class we learned how to raise a number to a power.
Eight is the third power of two.
UsageSay ten to the power of three.
Note
- 13
- 14To move forward with great force or speed.
Like a charging bull pushing through anything in its way.
The runner powered past two rivals near the finish line.
Strong swimmers power through the water toward the finish.
UsageSay power through or power past.
Similarsurge, race, charge, speed, thunder
Oppositecrawl
Note
- 15
- 16How much a lens or mirror makes things look bigger.
Like zooming in with a camera: more power means a closer, bigger view.
This telescope has enough power to show the moon's craters.
A microscope with high power reveals tiny cells.
Similarmagnification, strength
- 17An army or military force.
Note
- 18
- 19The chance that a test will correctly find a real effect when one truly exists.
- 20A kind of angel ranked above archangels in old Christian teaching.
- 21Shouted to cheer someone on and show support.
- 22Very good and impressive.
- 23In trucking, the truck part that pulls a trailer.
- 24One of the simple machines, like a lever, pulley, or screw, that helps move or lift things.
- 25In math, the number of things in a set.
- 26In quiz bowl, a right answer given early in a question, which earns extra points.
Showing meanings only.
Practice
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Origin
From Middle English power, which came from Old French poeir and ultimately from Latin posse, meaning to be able.
Checked 1 Nov 2026 · 4 facts
- English power comes from Middle English power. en.wiktionary.org
- Middle English power came from Old French poeir. en.wiktionary.org
- The word ultimately derives from Latin posse, through Vulgar Latin potēre. en.wiktionary.org
- Latin posse means to be able. en.wiktionary.org