DEGREE - [noun] a unit of measurement; amount or level, especially of ability or progress; a title that you get when you finish university
Examples of use
Water boils at 100 degrees Celsius.
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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