Englishfor English speakers
a
Determinative
—
A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
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A is the first letter of the alphabet.
The letter "a" comes before "b".
—
In some schools, an A is a very high grade.
Ron got an A on his earth science test.
whisper
Verb
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When you whisper to someone, you talk very quietly; to talk with breath but no voice, with a quiet sound like the wind, so only people very near can hear what you say.
Some people at the back of the room were whispering secrets.
whisper
Noun
—
A whisper is an act of talking to someone very quietly.
in
Preposition
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Used to show that something is inside something else.
The cat is in the box.
—
Used to show that someone is at home, or is available.
Is John in?
The Doctor is now in.
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Used to show movement towards the inside.
The rain came in through the window.
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."
—
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.
noise
Noun
—
A noise is a sound, usually one that you don't want.
There's too much noise. I can't hear what she's saying.