FOLK - [noun; adjective] people in general (informal); belonging to a particular country or area of ordinary people
Examples of use
The old folk used to say that there are ghosts in this wood.
All medieval ballads were based on folk stories.
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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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