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90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.
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Will you scratch my back for me?
He's broken his back, but he's still alive.
She was lying flat on her back on the bed.
Get in the back of the car.
The sun burnt the back of my neck.
a concert programme with Madonna's autograph on the back
I'll put my name on the back of the envelope.
This is the British English definition of back. View American English definition of back.
the part of the nucleus of an atom that has no electrical charge
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