Englishfor English speakers
jack
Noun
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A jack is a machine for lifting heavy thing. Often a jack is used to lift a car for fixing.
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A jack is a plug or connector for electronics.
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A jack is a flag used at by ships at sea.
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Another word for nothing.
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A jack is a playing card with a J on it.
jack
Verb
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To use a jack.
He jacked the car up so that he could replace the brake pads.
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To steal.
Someone jacked my car last night!
Jack
Proper noun
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Jack is a male given name.
at
Preposition
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Used to describe where something is, or when saying something's position
I am at home.
Let's meet at the pub!
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The time at which something happened or will happen
Breakfast is at 9 o'clock.
At 5pm we went home.
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Indicating something's state
At half price!
Water boils at high temperatures.
at
Symbol
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The @ symbol, used to replace at
support@microsoft.com is an email address.
Apples @ £1.50 per kilogram.
a
Determinative
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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".
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In some schools, an A is a very high grade.
Ron got an A on his earth science test.
pinch
Verb
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To squeeze or press between two things in a painful or uncomfortable way.
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To steal.
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To arrest.
pinch
Noun
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A very small amount.
The sauce just needs a pinch of oregano and it will be perfect.
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An awkward or stressful situation.
A true friend will always help you in a pinch.