Englishfor English speakers
abrupt
Adjective
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An abrupt action is one that is sudden, or not expected.
There was an abrupt change in the weather, and it started raining before we could get home.
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An abrupt landscape is one with sudden steep changes.
We came to a halt because we could not pass the abrupt cliffs.
decrease
Verb
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If something decreases, it goes down in number or value.
The Australian dollar has decreased 3% against the Euro.
The government has decreased the amount of money it gives to schools.
decrease
Noun
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A decrease happens when the number or value of something goes down.
There has been a 3% decrease in the Australian dollar against the Euro.
Every year we see a larger decrease in the number of students studying foreign languages.