- work done or energy transferred per unit of time. Symbol: P
- the time rate of doing work.
- the product obtained by multiplying a quantity by itself one or more times: The third power of 2 is 8.
- (of a number x) a number whose logarithm is a times the logarithm of x (and is called the ath power of x). Symbolically, y =xa is a number that satisfies the equation log y = a log x.
- the exponent of an expression, as a in xa.
- cardinal number(def 2).
- the magnifying capacity of a microscope, telescope, etc., expressed as the ratio of the diameter of the image to the diameter of the object.Compare magnification(def 2).
- the reciprocal of the focal length of a lens.
verb (used with object)
Words nearby power
Idioms for power
Origin of power
SYNONYMS FOR power
OTHER WORDS FROM powercoun·ter·pow·er, nounde-pow·er, verb (used with object)re·pow·er, verb
synonym study for power
Definition for power (2 of 2)
Origin of pow1
Examples from the Web for power
Would the Democrats rescind those rights if they were to return to power?The Black Man Who Replaced Jefferson Davis in the Senate|Philip Dray|January 7, 2015|DAILY BEAST
Employees strap a device to their heads and power a helicopter drone with their minds.
What it endangers is a narrow conception of Russian power, understood through the eyes of its dictatorial leader.
I believe in the power of institutions—Congress, public policy, certain ideas about politics—that last for a long time.
We, on the other hand, are the ones who are making it bad, and the ones with the power to change that.Cover-Ups and Concern Trolls: Actually, It's About Ethics in Suicide Journalism|Arthur Chu|January 3, 2015|DAILY BEAST
She saw in them, it is true, a reflex of her own power—and that pleased, but it did not move her.Mary Marston|George MacDonald
It has no power, but perhaps you could tow it behind your launch.Roy Blakeley|Percy Keese Fitzhugh
But his glory was growing dim and his power was withering into dust.
The cardinal wanted a benefice for one of his followers, and the Pope wished to get his son's enemy once more into his power.Renaissance in Italy Vol. 3|John Addington Symonds
No one need tell me that India has not got this power of suffering.Freedom's Battle|Mahatma Gandhi
British Dictionary definitions for power (1 of 5)
- legal authority to act, esp in a specified capacity, for another
- the document conferring such authority
- a military force
- military potential
- the value of a number or quantity raised to some exponent
- another name for exponent (def. 4)
- the rate at which electrical energy is fed into or taken from a device or system. It is expressed, in a direct-current circuit, as the product of current and voltage and, in an alternating-current circuit, as the product of the effective values of the current and voltage and the cosine of the phase angle between them. It is measured in watts
- (as modifier)a power amplifier
- mechanical energy as opposed to manual labour
- (as modifier)a power mower
- a measure of the ability of a lens or optical system to magnify an object, equal to the reciprocal of the focal length. It is measured in dioptres
- another word for magnification
Word Origin for power
British Dictionary definitions for power (2 of 5)
British Dictionary definitions for power (3 of 5)
Word Origin for pow
British Dictionary definitions for power (4 of 5)
Word Origin for pow
British Dictionary definitions for power (5 of 5)
Medical definitions for power
Scientific definitions for power
Cultural definitions for power
In mathematics, a power is a number multiplied by itself the number of times signified by an exponent placed to the right and above it. Thus, 32, which means 3 × 3, is a power — the second power of three, or three squared, or nine. The expression 106, or ten to the sixth power, means 10 × 10 × 10 × 10 × 10 × 10, or one million.
Idioms and Phrases with power
In addition to the idioms beginning with power
- power behind the throne
- powers that be, the
- corridors of power
- more power to someone
- staying power