TO GROW RAPIDLY - [verb phrase] to increase in amount or size very fast or suddenly
Examples of use
Thanks to the new manager, the company's profits have grown rapidly.
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English speaking practise
Remember that if you don't use that word in English conversations or writing you'll forget it in a short time. So the best thing you can do to learn this word is just trying to use it in speaking or writing. Remember also that practise is the key to fluent english speaking.
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