SUBSIDIARY - [noun] a company controlled by a bigger one
Examples of use
Their company establishes one more subsidiary in Europe.
There are more and more subsidiaries being established in Asia because of its cheap workforce.
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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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