FLOOR - [noun] the surface on which you stand indoors; a level of a building
Examples of use
I spilt the hot coffee onto the floor, which resulted in a big, dark stain on 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.
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