Englishfor English speakers
the
Determiner
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Used, instead of a, to reference something specific, already known to exist.
Compare "I read a book." and "I read the book."
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Used with a stress, to show that the word following is special.
Are you the John Smith that I went to school with?
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Used with an adjective that acts like a noun to mean all of the people concerned
The poor are always with us.
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Used with superlatives forms of adjectives and adverbs.
You are the best.
jacket
Noun
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A jacket is a piece of clothing with long sleeves that you wear over a shirt. A jacket is not as long as a coat.
He took his phone from the pocket of his jacket.
He pulled on his pants, grabbed his leather jacket, and ran out the door.
The girl wore a wool jacket that was so short you could almost see her stomach.
They wore red shirts, or jackets from the English Army.
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A jacket is a covering on something such as a book or a record.
Most Oz books don't have their original dust jackets because the books were so well loved.
He slipped the record carefully from the jacket.
A wire to go underground should have a jacket that will not allow water to enter.
We had a meal of potatoes boiled in their jackets, fish, black bread and butter, and pickled beets.
jacket
Verb
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If you jacket something, you put a jacket on it.
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If mathx/math jackets mathy/math, mathx/math covers mathy/math.