Englishfor English speakers
intelligent
Adjective
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If you are intelligent, you can understand difficult ideas easily and think clearly.
Any intelligent person should be able to understand this.
Today's children are more intelligent than children in the past.
Baboons are highly intelligent animals and learn to meet their needs in many different ways.
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If an idea or something said is intelligent, it shows good understanding and clear thinking.
That's probably the most intelligent comment I've heard today.
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If another living thing or a machine is intelligent, it can think in ways that are similar to us.
We will not likely find intelligent life of other planets.
key
Noun
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A key is a small instrument, usually metal used to open locks.
I put my key in the lock and turned it.
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A key is a button used for typing.
Type your name and hit the ENTER key.
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A key is the part of a keyboard instrument you press with your fingers to play a sound.
The piano has a pattern of black and white keys.
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The key in music is the tonal centre of a piece of music.
Mozart's Symphony No.40 is written in the key of G minor.
key
Adjective
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Something that is key, is an important or a main thing.
Accuracy is a key part of playing music.
key
Verb
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To key is to lock something with key, or like using a key.
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To key is to put locks on a building.
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The locksmith was called in to key the building for better security.
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To key is to enter information into a computer.
He keyed in all the data from the survey.