Englishfor English speakers
switch
Verb
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If you switch something, you change it to something else.
He switched his book with mine.
We switched to a cheaper brand of coffee.
When they didn't seem to understand, he switched to French.
Jump ten times, switch legs and repeat.
I just switched jobs, and at my new job I don't have insurance.
When his team was losing, he switched sides.
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If you switch a light or machine on, you change something so that it has power and can work.
She sat up in bed and switched on the light.
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If you switch a light or machine off, you change something so that it doesn't have power and can't work.
I switched off the computer and went to bed.
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If you switch over to something, you change to it, often with no plan to change back to the first thing.
We used to watch CNN, but we've switched over to BBC World News.
It was difficult when I switched over from writing to acting.
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If you switch gears, you change the way you think or act to match a particular situation.
When I come home from work, it takes me a while to switch gears.
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If you switch with somebody, you do something that they usually do and they do the thing that you usually do.
Sibyl couldn't work on Tuesday, so I switched with her.
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If you switch a machine to a particular setting or function, you set it to work that way.
She switched the TV to another channel.
She switched the plane to automatic pilot.
switch
Noun
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A switch is what you use to turn lights or other machines and equipment on and off.
The light switch is on the wall behind the door.
Where's the on/off switch on this printer?
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A switch is a change from one thing to another.
It's often difficult for older people to make the switch to living alone.
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A switch is a place on the track where trains can chose between two tracks.
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A switch is a networking device that connects networks together by sending data (packets) only to the devices that need them.
Switches are more efficient than hubs because they understand which device needs the data that other devices send them.
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A switch is a thin stick.
supply
Noun
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A supply is an amount of something that you can use when you need it.
We will need a supply of water.
During the war, the Americans destroyed their food supply.
Sadly these books are in very short supply in Britain.
The price of oil changes quickly to match supply and demand.
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Supplies are things like food, water, medicine, gasoline, etc. that people need when they are not near somewhere where they can get them easily.
The Japanese government is finally planning to send medical supplies and financial support.
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Supply is the act or system of supplying something.
They plan to fix the Russian economy and improve the supply of food and consumer goods.
The airplane's air supply wasn't working.
supply
Verb
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If you supply something, you make it available, usually regularly.
We were supplied with a few basic tools that we needed for the job.
Our garden supplies us with all the food we need.
The office was well supplied with chairs.
supply
Adverb
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In a supple way.