Englishfor English speakers
additional
Adjective
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Added to what might normally be given or used.
They used an additional sheet of paper.
change
Verb
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If you change something, you make it different than before.
Ellen changed the sentence so that it was correct.
change
Noun
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A change is when something becomes different.
The building plan required some small changes.
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When you get change for a bill, you get smaller bills or coins that equal the amount of the original bill. For example, if you get change for a $5 bill, you may get five $1 bills or you may get four $1 bills and coins that add up to $1 or you may get some other combination of bills and coins.
Can I get change for this $100 bill please?
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A change is a replacement.
I brought a change of clothes, just in case.
gear
Noun
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Gear is clothing and other equipment, especially in sports.
Hurry up and get your gear on. The game's about to start.
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Gears are wheels that turn and drive other wheels at different speeds.
One of the gears from the motor had got stuck and wouldn't turn.
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A gear in a machine, especially a car or bicycle, is a particular combinations of gears.
He put the car into gear and drove off.
This bike has 24 gears, but I only use three.
Shifting into fourth gear, she pushed the car over 100 km/h.
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A gear is a speed or level that you do something at.
Everyone was working at high gear to finish before the deadline.