power

Use the word "power" when describing strength or a source of energy. This word can be a noun, a verb, or an adjective.

Electric power is necessary for a modern society. When the power fails, this is called a "power outage" or a "power failure."
The power button turns a machine on and off. (This sentence uses "power" as an adjective.)
Power tools make a job easier to finish.
This cordless drill is battery powered. It gets its power from a battery.
He has a lot of power in his arms. He’s very powerful.
Barack Obama has a lot of political power. He’s a powerful leader.
Some kings and queens have unlimited power. They can do whatever they want to do.
Some company leaders have a lot of power. He’s a very powerful boss.
Super heroes have certain powers that ordinary people don’t have.
Knowledge is power.

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February 5, 2013