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English definition of “power”

power

noun uk   /paʊər/ us    /paʊɚ/

power noun (CONTROL)

B2 [U] ability to control people and events: I've no power over him - he does what he wants to. Once nicotine has you in its power, it's very difficult to stop smoking. She has the power to charm any man she meets. C1 [U] the amount of political control a person or group has in a country: Does the president have more power than the prime minister? How long has the Conservative Party been in power? The army seized power after five days of anti-government demonstrations.

power noun (STRENGTH)

C1 [U] strength: Our car doesn't have enough power to tow a trailer. Weightlifters have tremendous power in their arms and legs. Scientists are working to harness the power of the atom. The economic power of many Asian countries has grown dramatically in recent years.

power noun (OFFICIAL RIGHT)

[U] an official or legal right to do something: [+ to infinitive] I'd like to help but I don't have the power to intervene in this dispute. It's not in your power to cancel the order. I can't give you a refund - I'm afraid it's not within my power. powers [plural] authority: You were acting beyond your powers when you agreed to give her a pay rise. Visitors to the city are respectfully reminded of the council's powers to remove illegally parked vehicles.

power noun (ELECTRICITY)

B1 [U] electricity, especially when considering its use or production: You should disconnect the power before attempting to repair electrical equipment. Our building lost power (= the electricity was stopped) during the storm. power cables/lines

power noun (ABILITY)

powers [plural] abilities: My mental powers aren't as good as they used to be. C1 [U] a natural skill or an ability to do something: He was so shocked by what happened to his parents that he lost the power of speech. [+ to infinitive] The surgeon did everything in her power to save him.

power noun (PERSON WITH CONTROL)

C1 [C] a person, organization, or country that has control over others, often because of wealth, importance, or great military strength: Spain was an important military power in the 16th century. Germany is on its way to becoming a world power with a permanent seat on the UN Security Council. She is an increasingly important power in the company.

power noun (ENERGY)

[U] specialized physics the rate at which energy is used, or the ability to produce energy: The ship was only slightly damaged in the collision and was able to sail into port under its own power. The power rating of my amplifier is 40 watts per channel.

power noun (IMAGE SIZE)

[U] the amount by which an image is increased by a device used for seeing things that are very small or a long distance away: What's the magnification power of your binoculars? You'll need a very high-power microscope to see something as small as that. A low-power telescope is enough if you only want to look at the moon.

power noun (MATHEMATICS)

[S] specialized mathematics the number of times that a number is to be multiplied by itself: 2 to the fourth power is 2 times 2 times 2 times 2, which equals 16. 3 to the power 4 is usually written as 34.

power

verb uk   /paʊər/ us    /paʊɚ/

power verb (ENERGY)

[T] to provide a machine with energy and the ability to operate: Buses and trucks are usually powered by diesel engines. In the future electricity will be used to power road vehicles.

power verb (STRENGTH)

[I usually + adv/prep] to act with great strength or in a forceful way: Halfway through, she powered into the lead and went on to win the race.
Phrasal verbs
(Definition of power from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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