TO APPLY - [verb] to request something, especially in writing
Examples of use
They've applied to one of the biggest companies for financing their project.
When I saw the job advert it was already too late to apply for it.
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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.
You can always find a partner, who would also like to improve his/her