Englishfor English speakers
back
Preposition
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Toward the rear.
He went back behind the stands.
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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.
strength
Noun
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If you have strength you are strong.
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#If you have strength your muscles are very powerful.
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#:I don't have the strength to lift something that heavy.
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#Strength can also mean you are strong or tough is some other way, such as a strong mind or strong will.
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#:She needed great strength to deal with her sickness and poverty.
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A strength is a good quality.
The plan had may strengths, such as not needing many people and being easy to do.
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Strength as in the number of something.
The strength of the regiment was 3,000 soldiers.