power

1 power /ˈpawɚ/ noun
plural powers
1 power
/ˈpawɚ/
noun
plural powers
Britannica Dictionary definition of POWER
1 
[noncount] : the ability or right to control people or things
— often + over
2 
[noncount] : political control of a country or area
— see also black power, flower power
3 
[count]
a  : a person or organization that has a lot of control and influence over other people or organizations
b  : a country that has a lot of influence and military strength — see also great power, superpower, world power
4 
[noncount]
a  : physical force or strength
— often + of
b  : military force
— see also balance of power, firepower, sea power
c  : the energy or force that someone or something can produce for movement, work, etc.
5 
a  : an ability to do something
[count]
— often + of
[noncount]
— see also buying power, purchasing power, staying power
b  [noncount] : the ability to influence or affect people or things
— often + of
— see also drawing power, pulling power
6 
: the right to do something : legal or official authority to do something
[count]
[noncount]
— see also power of attorney
7 
[noncount]
a  : energy that can be collected and used to operate machines
— see also horsepower, manpower
b  : the electricity that people use
8 
[count] mathematics
a  : the number of times that a number is to be multiplied by itself
b  : a number that results from multiplying a number by itself
9 
[noncount] technical : the ability of an optical device (such as a telescope) to make objects look bigger

do (someone) a power of good

British, informal + old-fashioned
: to help someone physically or mentally : to make someone feel better

more power to you

(US) informal or British more power to your elbow
— used to say that you approve of what someone is doing and hope it will be successful

the corridors/halls of power

: places where people talk about issues and make important decisions especially about political matters

the power behind the throne

: the person who secretly controls a country, organization, etc., by controlling the actions and decisions of the official leader

the powers that be

: the people who decide what is allowed or acceptable in a group, organization, etc.
power , authority , jurisdiction , command , and dominion mean the right or ability to govern, rule, or strongly influence people or situations.
power is a general word that suggests the ability to control or influence what is done, felt, etc.
authority suggests power that has been given to someone for a specific purpose and that has certain limits.
jurisdiction refers to official, legal power that has certain limits.
command refers to the power that someone (such as a military officer) has to make decisions and to force people to behave in a desired way.
dominion is a formal word that stresses the greatest or highest power or authority.
2 power /ˈpawɚ/ verb
powers; powered; powering
2 power
/ˈpawɚ/
verb
powers; powered; powering
Britannica Dictionary definition of POWER
1 
[+ object] : to supply (something) with power — usually used as (be) powered — see also powered
2 
always followed by an adverb or preposition : to move with great speed or force
[no object]
— often used figuratively
[+ object]

power up

[phrasal verb]
power up (something) or power (something) up
: to make (a machine) ready for use by supplying it with electricity
3 power /ˈpawɚ/ adjective
3 power
/ˈpawɚ/
adjective
Britannica Dictionary definition of POWER
always used before a noun
1 
: of or relating to electrical power
2 
: operated by using electricity rather than a person's strength
3 
: having great strength or power
4 
a  : involving important people who meet to discuss business or political affairs
b  of clothing : having a formal or impressive quality that is meant to make you look powerful and important