FEEDBACK - [noun] information, opinion about something (a product, idea, performance etc.)
Examples of use
Teachers should always remember to give their students feedbacks on every task they perform.
We've received a feedback from our recent guests that they are fully satisfied with their visit in our company.
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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