Englishfor English speakers
back
Preposition
—
Toward the rear.
He went back behind the stands.
—
To a place again.
I didn't like it, so I sent it back.
He went back to the same house.
They came back again.
back
Noun
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The back is the rear part of something; it is the part in the other direction from the front.
I went to the back of the house.
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The back is the rear part of the human body.
He had a scar on his back.
back
Verb
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If you back something, you support it.
The Republicans backed the bill.
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If you back up, you move backward.
He put the car in gear and backed right into the garage door.
center
Noun
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The center of something, is the place that is as far from its outside as possible.
The president and his problems continue to take center stage in the news.
She placed a flowers at the center of the table and then hurried off.
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A center is a building, area, or group of people with a particular purpose.
They have opened a large shopping center in Taipei.
The team was staying at the US Olympic training center.
Recently, Bahrain has become a major international banking center.
Scientists at the Center for Disease Control have found a new virus.
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The town center is the place in the town where most of the shops are.
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In politics, the center is the position that is not politically right or left.
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In sports, a center is a player who plays in the middle of the field, usually an attacker.
center
Verb
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If you center something, you move it towards the center.