Englishfor English speakers
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.
length
Noun
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The length of an object is the distance between one end of that object and the other.
What is the length of the car?
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The length of a horse is used to show the distance between horses at the end of a race.
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Length is the distance down the pitch that the ball bounces on its way to the batsman.