power

nation, state, country, land, power

这些名词均含“国家”之意。
nation: 普通用词，指在某一国土定居的人民、民族，强调人民。
state: 正式用词，指政治概念上的国家，即由政府所代表的国家。
country: 普通用词，侧重国土与人民。
land: 常用于文学中，侧重国土，带感情色彩。
power: 特指拥有强大军事力量，在国际事务中有较强权威或影响的国家，即强国、大国。

power, force, strength

这组名词都有力量的意思。
power: 指身体上、精神上或心理上的力量, 不管是表现出来的还是潜在的。

• it's beyond his power.
  这是他力所不及的。

force: 指运用或发挥出来的力量，可以克服阻力，使人或物按要求方向运动。

• he did it with a great force.
  他用了很大的力才把它做完了。

strength: 指内部固有的力量，表示物质力量时，着重体格或构造健全、完善等方面的力量, 如体力强度等；表示精神力量时, 指持久、坚定、无畏、坚韧等。

• the strength to lift something
  举起某物的力。

名词 power:

1. possession of controlling influence
   同义词：powerfulness
2. (physics) the rate of doing work; measured in watts (= joules/second)
3. possession of the qualities (especially mental qualities) required to do something or get something done
   同义词：ability
4. a state powerful enough to influence events throughout the world
   同义词：world power, major power, great power, superpower
5. (of a government or government official) holding an office means being in power
   同义词：office
6. one possessing or exercising power or influence or authority
   同义词：force
7. physical strength
   同义词：might, mightiness
8. a mathematical notation indicating the number of times a quantity is multiplied by itself
   同义词：exponent, index
9. a very wealthy or powerful businessman
   同义词：baron, big businessman, business leader, king, magnate, mogul, top executive, tycoon

动词 power:

1. supply the force or power for the functioning of

1. The powers of the police need to be clearly defined.
   必须对警方的权限作出明确的规定。
2. Sitting out here, you really can feel the power of the sun.
   坐在这里，你可以感到太阳的力量。

pow.er

n.Abbr. pwr.（名词）缩写 pwr.
The ability or capacity to perform or act effectively.
权力：有效地执行或行动的能力或才能
Often powers A specific capacity, faculty, or aptitude:
常作 powers 才能：一种具体的能力、天赋或才能：
例句：
her powers of concentration.
他集中注意力的能力

Strength or force exerted or capable of being exerted; might.See Synonyms at strength
力量，强力：施加或能够被施加的能力或力量；权力参见 strength
The ability or official capacity to exercise control; authority.
权威：实行控制的能力或官方的权力；权威
A person, group, or nation having great influence or control over others:
有势力者，有力的组织，强国：对他人或他国具有极大影响力或控制力的人、集团或国家：
例句：
the western powers.
西方列强

The might of a nation, political organization, or similar group.
势力：一个国家、政治组织或类似集团的势力
Forcefulness; effectiveness:
有说服力，深刻：有力；有效：
例句：
a novel of unusual power.
极具说服力的小说

Chiefly Upper Southern U.S. A large number or amount.See Regional Note at powerful
【多用于美国中南部】 众多，大量参见 powerful

The energy or motive force by which a physical system or machine is operated:
动力：使人体系统或机器运转的能量或动力：
例句：
turbines turned by steam power; a sailing ship driven by wind power.
用蒸汽力转动涡轮机；帆船靠风力行驶

The capacity of a system or machine to operate:
操作：使系统或机器运转起来的能力：
例句：
a vehicle that runs under its own power.
自动操控的汽车

Electrical or mechanical energy, especially as used to assist or replace human energy.
电能，机械能：电能或机械能，尤指用来协助或代替人力的能
Electricity supplied to a home, building, or community:
电力供应：供给家庭、建筑物或社区的电力：
例句：
a storm that cut off power to the whole region.
切断了整个地区电力供应的暴风雨

Physics The rate at which work is done, expressed as the amount of work per unit time and commonly measured in units such as the watt and horsepower.
【物理学】 功率：做功的速率，用每单位时间内所做的功的量来表示，通常用瓦特和马力为单位
Electricity
【电学】
The product of applied potential difference and current in a direct-current circuit.
电路：直流电路中的实际电位差与电流的乘积
The product of the effective values of the voltage and current with the cosine of the phase angle between current and voltage in an alternating-current circuit.
伏特量：交流电路中电压与电流的有效值以及电流与电压之间相位角的余弦之乘积
Mathematics
【数学】
See exponent
参见 exponent
The number of elements in a finite set.
指数：有限数列中元素的数量
Statistics The probability of rejecting the null hypothesis where it is false.
【统计学】 推翻假设的机率：推翻错误处无用假设的可能性
A measure of the magnification of an optical instrument, such as a microscope or telescope.
倍率：光学仪器，如显微镜或望远镜的放大倍数
powers Theology The sixth of the nine orders of angels.
powers 【神学】 九级天使中的第六级
Archaic An armed force.
【古语】 武装部队
adj.（形容词）
Of or relating to political, social, or economic control:
权力的：关于政治、社会或经济控制的：
例句：
a power struggle; a power base.
权力争斗；权力基础

Operated with mechanical or electrical energy in place of bodily exertion:
机械能的，电动的：用机械动力或电能代替人力来驱动的：
例句：
a power tool; power car windows.
电动工具；电动车窗

Of or relating to the generation or transmission of electricity:
以电力传送的：关于电力发动或电力输送的：
例句：
power companies; power lines.
电力公司；电路

Informal Of or relating to influential business or professional practices:
【非正式用语】 专业的，有效的：有影响力的商业机构或职业实践的或与其有关的：
例句：
a pinstriped suit with a power tie; met with high-level executives at a power breakfast.
一套配有醒目领带的横条纹西装；在早餐会上会见高级主管

v.tr.（及物动词）
pow.ered,pow.er.ing,pow.ers
To supply with power, especially mechanical power.
运转：提供动力，尤指机械动力

<习惯用语>powers that be
Those who hold effective power in a system or situation:
掌权者：在某一系统或职位中掌握实权的人：
例句：
a plan vetoed by the powers that be.
被掌权者们否决了的计划

来源：
Middle English
中古英语
from Old French poeir [to be able, power]
源自 古法语 poeir [能够，权力]
from Vulgar Latin *potôre [to be able]
源自 俗拉丁语 *potôre [能够]
from potis [able, powerful] * see poti-
源自 potis [有能力的，有权势的] *参见 poti-