power

電力、電気

建物や機械、地域に供給される電気。

やさしい英語で： Electricity supplied to a building, machine, or area.

• The power is off.
• A storm cut power to the whole village.
• Solar panels provide power for the house.

類義語： electricity

よく使う表現： power supply, power cut, solar power

力、パワー

物を動かしたり、何かを起こしたりする力。

やさしい英語で： Physical strength or force that makes something move or happen.

• His kick had real power.
• The waves hit the boat with great power.
• She admired the power of the horse’s legs.

使い方： power of something (We felt the power of the waves.)

類義語： strength, force

反対語： weakness

よく使う表現： muscle power, sheer power, power of something

能力、力

何かをする力。普通の人にはできない特別な力も指す。

やさしい英語で： An ability to do something, sometimes something unusual or impossible for ordinary people.

• The hero has the power to fly.
• She used her powers to help people.
• His powers of memory surprised us.

使い方： power to do something (The wizard has the power to disappear.); powers of something (Her powers of observation are remarkable.)

類義語： ability, capacity

反対語： inability

よく使う表現： special power, power to fly, healing power

電力、仕事率

一定時間あたりに機械が使う、または生み出すエネルギー量。

やさしい英語で： How much energy a machine uses or produces in a certain amount of time.

• Power is measured in watts.
• This motor has a power output of two kilowatts.
• The device uses less power at a lower speed.

よく使う表現： power output, rated power, measure power

累乗、べき乗

同じ数を、指定された個数だけ掛け合わせて得る数。

やさしい英語で： A number made by multiplying another number by itself a stated number of times.

• Three to the power of two is nine.
• Write one thousand as a power of ten.
• We learned how to calculate powers of whole numbers.

使い方： to the power of a number (Two to the power of four is sixteen.)

よく使う表現： power of ten, third power, to the power

権力者、権力機関

他人を動かしたり、重要な決定をしたりする権限を持つ人や団体。

やさしい英語で： A person or group with the authority to control others or make important decisions.

• The church was a major power in the town.
• Local powers resisted the new law.
• The powers that be have rejected our request.

類義語： authority

よく使う表現： local power, ruling power, powers that be

動力を供給する、動かす

機械や装置が動くために必要なエネルギーを供給する。

やさしい英語で： To supply the energy that makes a machine or device work.

• Batteries power the toy.
• A small motor powers the fan.
• What powers this boat?

使い方： be powered by something (The clock is powered by a small battery.)

類義語： drive, fuel

よく使う表現： power a machine, power a device, power something electrically